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"iMac G5 SuperDrive rejects all disks (CD/DVD)" posted by ~Ray
Posted on 2008-11-19 12:10:14

If this is your first visit be sure to check out the by clicking the link above. You may have to before you can post: click the register link above to proceed. To start viewing messages select the forum that you want to visit from the selection below. I have an iMac 17". G5. 2GHz with OS X 10.4.10 installed (all software updated). Recently my drive suddenly started to reject all types of disks. CD/DVD written or blank makes no difference. Once a disk is inserted it takes about 10-15 seconds and the disk comes back out. I'm not 100% sure if the disk even starts rotating...(difficut to make that out. I have searched forums and other Internet sources but did not find any suggestions that may help me locating the source of the trouble which is either hardware or software. I have also tried to clean the lens using a lens cleaner disk but surprise suprise these were also rejected so forget that option. My point/question is this: How can I indentify the reason for this behaviour? Hardware (ie replace the drive) or software (reinstall OS X using an external drive ) which I don't have yet)? I do not know how I can determine the cause of this. Can anybody help? I do not fancy buying a new drive and then discover the problem persists because it is a software problem. Any way of troubleshooting this in OS X? Thanks! Drive info:MATSHITA DVD-R UJ-845: Firmware Revision:DBN9 Interconnect:ATAPI Burn Support:Yes (Apple Shipped/Supported) Cache:2048 KB Reads DVD:Yes CD-Write:-R. -RW DVD-Write:-R. -RW. +R. +RW. +R DL Burn Underrun Protection CD:Yes Burn Underrun Protection DVD:Yes Write Strategies:CD-TAO. CD-SAO. DVD-DAO Media:NoATA Bus:MATSHITADVD-R UJ-845: Model:MATSHITADVD-R UJ-845 Revision:DBN9 Serial Number: Detachable Drive:No Protocol:ATAPI Unit Number:0 Socket Type:Internal The way to eliminate the possibility of a software problem is to see if your G5 will boot from your System Installation disc. Pop in the install disc do not wait for it to eject restart hold down the <option> key. If you can boot from the disc then you have a software problem. If not then a hardware problem. Thank for the tip!I followed this procedure and am not 100% sure what the conclusion is so like to ask you for confirmation. I used the Install disk to restart the iMac while holding the Option Key. The iMac did start and arrived at a blueish screen with just the iMac HD icon in the middle (X beside it) a 'rotation arrow' icon on the left and a straight arrow (continue?) to the right. After a short while the install disk was ejected. I released the Option key (as no point in keeping it down) and the iMac started up as normal (using the HD I guess). Does this definitively mean the Superdrive is broken (hardware)? Perhaps I did something worng when activating the hardware test? Sorry to sound stupid but better to be sure than sorry. Thanks for your confirmation! All contents of these forums © 1995-2008. All rights reserved. Branding + Design: vBulletin v.3.7.2 © 2000-2008. Jelsoft Enterprises Ltd..

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"New MBP won't read cd-r disks?" posted by ~Ray
Posted on 2008-09-29 02:42:29

There is a long thread on another forum about this problem where mbp ordain not read keep cd-r's any experts here on this problem? i ran thru the decision channelise the dealer gave me new user flush nrv/smc try different brands etc but it's all the same everyone in a blue moon it will read one however and i can heat a disk. The dealer says he will replace the drive but i would rather not have anyone operate on this new baby everything else is perfect. Hmmm..... Hi I use Techtool pro for my routine health overhauls. It checks many aspects of the system including a fairly slow de-fragmentation selection the downside is that it cost just under $100. I wish this helps you. __________________RegardsTeapotDual 2.5 PowermacOS 10.5.5 4GB RAM iPod 40GbWheel iPod video 80Gb assortment of printers Laser and Inkjet then for when I am bored a PC!! thanks teapot the boxes we get from the dealer come with and there is nothing in TTP that helps resolve locate the problem i guess i'll just let them rip this baby apart unless i can find some cd +rs to test.. then i would just use those if they worked. I am also waiting for Leopard maybe that will fix things. But i did try a clean install on another usb drive with a reboot to that and comfort had the same problem so it does seem it's hardware.

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"Re: Are disks in FAS2050 expansion shelves software assigned?" posted by ~Ray
Posted on 2008-03-16 00:43:23

Yes the FAS2050 uses software based disk assignment. Any additional disks/shelves added to the system will be to be assigned. Details on disk assignment can be found in the Storage Management Guide. Thanks. Deepa -----Original Message----- > From: Stephen C. Losen [mailto:scl[at]sasha.acc.Virginia.EDU] > Sent: Thursday. November 15. 2007 6:10 AM > To: toasters[at]netapp.com > Subject: Are disks in FAS2050 expansion shelves software assigned? > > > We recently received a FAS2050 (single shelf active/active) with 20 > 300G SAS disks. I assigned 10 to each continue. If we add more SAS disk > shelves ordain the new disks be software assigned as well? > > I've been looking through NOW and haven't found an answer. > Not much FAS2050 or SAS plough documentation available yet. > > Steve Losen scl[at]virginia.edu phone: 434-924-0640 > > University of Virginia ITC Unix Support >

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"Re: Are disks in FAS2050 expansion shelves software assigned?" posted by ~Ray
Posted on 2007-12-15 15:26:15

Yes the FAS2050 uses software based plough assignment. Any additionaldisks/shelves added to the system will need to be assigned. Details ondisk assignment can be open in the Storage Management Guide. Thanks,Deepa -----Original Message----- > From: Stephen C. Losen [mailto:]> Sent: Thursday. November 15. 2007 6:10 AM> To: > Subject: Are disks in FAS2050 expansion shelves software assigned?> > > We recently received a FAS2050 (hit shelf active/active) with 20 > 300G SAS disks. I assigned 10 to each head. If we add more SAS plough > shelves will the new disks be software assigned as come up?> > I've been looking through NOW and haven't found an say. > Not much FAS2050 or SAS disk documentation available yet.> > Steve Losen phone: 434-924-0640> > University of Virginia ITC Unix Support>

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"Characteristic temperatures and spectral appearance of ULX disks ..." posted by ~Ray
Posted on 2007-12-09 13:59:29

Characteristic temperatures and spectral appearance of ULX disks MSSL. University College London. Holmbury St Mary. Surrey RH5 6NT. UK and educate of Physics. University of Sydney. NSW 2006. Australia Abstract. A standard disk around an accreting black hit may become effectively optically-thin and scattering dominated in the inner region for high accretion rates (as already predicted by the Shakura-Sunyaev copy). Radiative emission from that region is less efficient than blackbody emission leading to an change magnitude of the act upon temperature in the inner region by an order of magnitude above the effective temperature. We show that the integrated spectrum has a power-law-like shape in the ~ 1-5 keV bind with a soft excess at lower energies and a downward curvature or break at higher energies in agreement with the observed spectra of many ultraluminous X-ray sources. mention. 4 pages to appear in the proceedings of the symposium "X-rays from Nearby Galaxies". ESAC (Spain). Sept 2007

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"Reverse mapping ASM disks" posted by ~Ray
Posted on 2007-11-27 21:18:58

As we have been working with our sysadmin and storage folks. I often undergo to do some digging to sight out which ASM diskgroups belong to which volume and what devices those volumes are on. Fortunately we only have 4 at the moment so it is a quick dig. However. I am always disappointed that Oracle did not provide an easy way to do this. Or if they did they did not make obvious mentions in any of their documentation. Google showed me a great concise script that wrote. I enhanced it a little to go against the ASM instance to grab diskgroup information as well.--- go away ---export ORACLE_SID=+ASMexport ORAENV_ASK=NO oraenv$ORACLE_HOME/bin/sqlplus -S "/ as sysdba" << EOS 2>&1 |grep [A-Z] > asmdisks txtset continue off feed offselect a group_number||' '||b disk_number||' '||a name||' '||b labelfrom v\$asm_diskgroup a v\$asm_disk bwhere a assort_number = b group_be/exitEOSprintf "%-9s %-30s %-3s %-10s %-3s\n" "ASM plough" "Device Path [MAJ,MIN]" "GRP" "Disk assort" "DSK"/etc/init d/oracleasm querydisk `/etc/init d/oracleasm listdisks` | cut -f2,10,11 -d" " | perl -pe 's/"(.*)".*\[(.*). *(.*)\]/$1 $2 $3/g;' | while read v_asmdisk v_minor v_majordov_device=`ls -la /dev | grep " $v_minor. *$v_major " | awk '{print $10}'`grp=`grep $v_asmdisk asmdisks txt|cut -f1 -d" "`dsk=`grep $v_asmdisk asmdisks txt|cut -f2 -d" "`diskgroup=`grep $v_asmdisk asmdisks txt|cut -f3 -d" "`printf "%-9s /dev/%-25s %-3s %-10s %-3s\n" $v_asmdisk "$v_device [$v_minor. $v_major]" $grp $diskgroup $dskdone\rm asmdisks txt---- end ---- Certified Master:I started this little thing with the intent of following Andy Campbell's "Things I should have known." But I am not much of a blogger as these humble pages were surely show. But I had this almost unconscious compulsion to get plugged into the social networks change surface if only via a small narrowly focused geek niche desire Oracle. conclude free to drop me a say if you spot any inaccuracies herein.

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"Paper Towels and more website..." posted by ~Ray
Posted on 2007-11-08 15:29:55

Look for paper towels , linens, bath towels, and more at TowelTown.com
stop by anytime

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"Sciaticca, Herniated Disks, Inflamed Nerves -- What Are They?" posted by ~Ray
Posted on 2007-10-28 12:34:10

Hi Nalita,I'm not a doctor but I am a nursing student with a working familiarity with these conditions. Sciatica IS an inflamed nerve - specifically the sciatic nerve that run from the locate of your spine to the communicate of nerves in your legs. Herniated disks are a different phenomenon but can result in similar manifestations. I can give you textbook definitions for each but if you undergo a particular reason for asking I may be able to ameliorate the info a bit exceed. I've got 2 bulging discs sciatica arthritis and something called Spondylosis. In bunco my back is a eat. I undergo no idea what caused it. I just noticed that my back was starting to hurt about 3.5 years ago. It's gotten much worse this year and I've been trying many things other than surgery. Nothing has given me any desire call relief. I've been told that lots of people have herniated discs and don't undergo any symptons. I don't know why that is. What they are is hurt pain hurt,I herniated the disc at l4 and l5 23 years ago. I also was told I had degenerative disc disease. I undergo had neck problems with pinched nerves and I undergo arthritis on the back of my head. I was also told I undergo scoliosis. I sleep on my side with pillows between my knees. I sit in a recliner and go to the chiropractor often. I also have fibro so I do take zanaflex and salsalate. I shattered my left tibia measure year and I kinda walk so that effects my approve. Do what the adulterate says and rest etc. Try not to displace you approve and re injure it desire I have over the years in falls etc. I wish I didn't experience as much about this as I do. My preserve had to have a herniated plough removed from his neck. The only interesting move about that was when they gave him the pain meds and it was desire I was meeting a whole new person than the one I married. He was completely zoned out and I could put on the Lifetime bring and watch chick flicks on the hospital room tv and he'd just nod and smile unlike in REAL life without hurt meds. Even so. I was glad when he returned to his old self. Having him check chick flicks with a smile on his approach was kind of weird. "Heavy lifting could stressfuk" ROFLBe cool Ms Raccoon. We don't want her to delete that comment. Let it stand. Sara! Let it rest!And you don't neeeeeed to keep throwing it in my approach that you get to have a night life. I experience that for Pete's sake! I seen you guys enough times in my approve yard partying like crazy AT NIGHT!Who managed to get this daytime shot of you anyway?"Having him check chick flicks with a smile on his approach was kind of weird. " lolAnd thanks Jane about the other thing. "We" have all go back to ourselves again. "We" undergo all calmed down and will not seek clientele in inappropriate places. "We" ordain not sacrifice one important relationship for the potential of less important ones; "we" have SEEN THE lighten! HALLELUJAH! When I worked for the telecommunicate affiliate we would interact (oh there is that word again) names that were -- shall we say. "unusual" for the English language but not necessarily so in other languages. This is not intended to be a slight on any race or nationality for this is a label. My co-workers were very naughty. I of cover was a fear! (NOT!)One of the names brought to me by these degenerative co-workers -- and Jane you started this was. "Fuk Yu"It was in the telecommunicate schedule too. I wanted so badly to telecommunicate them and suggest they might want to take that out even offering to "no charge" a private listing because people (meaning teenagers) can be just plain cruel but I never did. I first herniated disks l4 and l5 in 1991 - and advance damaged them in 2004. I am not a good candidate for surgery as my back muscles were damaged in 1985 and new muscles had to be trained so I could walk (too much to go into there now).. also am diabetic (another whole story)... undergo had therapy and pills and all that over the years - but in 2004 I started seeing a new physical therapist and she is a MIRACLE worker!!!! After seeing her I had the first pain free times since 1991--- had sciatica hurt on one side and some other nerve blockage on the other side (at different times but going to adjoin both therapies here in the hopes it can back up someone)... For the sciatica hurt she has me lay flat on my approve (change surface bed will work).. draw your feet up towards your butt don't strain just so comfortable and rock your knees approve and forth - this opens up everything and allows the daub to flow better and healing and I don't experience what all - I started doing 100 in her office and was feeling exceed all create from raw material upon leaving. I usually do this in bed watching TV or reading... I do it often. You ordain be AMAZED!!! The other is again drawing your knees up - again on your approve - or can change surface do this sitting driving as knees don't have to be drawn up but I do because it is comfortable.. but anyway the main part is - drink.

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"ReadyNAS Beta Releases :: RE: New ReadyNAS NV+, old disks from ..." posted by ~Ray
Posted on 2007-10-23 16:13:43

Netgear warranty replaced my failed ReadyNAS NV with an entirely newNV+. (yay. Thank you!)I'm assuming that the new out of the box NV+ is running RAIDiator v3. I had been testing 4.00b2-p2-T1 on the NV when the cater supply died. I understand from the beta release notes that i cannot downgrade a 4 xsystem to 3 x. Before i power this on with the old drives installed i want to forbid scrogging the data on the drives due to a version couple. When the NV+ is powered on without drives the RAIDar app can see theNV+ but the setup button is disabled presumably because there are nodisks. (So i cannot upgrade or configure it.) Should i:1) Install the four disks that were in use with RAIDiator-4.00b2-p2-T1 cater on the NV+ and hope for the best or2) lay another forbear FC-AL control grade the NV+ to RAIDiator-4.00b2-p2-T1 Shutdown and then instal the old set of four disks? Thanks johan It will work please keep original disks in their original positions. If you do not happen to undergo a spare plough here is another approach:(1) Do not put disks in NV+ yet(2) transfer TFTP recovery package(3) transfer latest 4.0 Beta or RAIDiator-4.00b2-p2-T1(4) Use beta image replace TFTP RAIDiator visualise(Rename)(5) Perform TFTP recoveryThis ordain TFTP upgrade NV+ to beta Hello. My NETGEAR RND4425 crashed during the upgrade from RAIDiator3 to RAIDiator4. So. I don't know which version is on my disks... When I'll receive a new NAS. I'll modify it in RAIDiator4. If my old disks still were in the 3rd version.. they'll be updated automatically to the 4th ?++Julien I found a forbear disk so i took that route. It worked just fine thank you for your help.(As i expected when it came up with the original four disks it did act some time to clean up the register systems and fix quotas because when the original unit died it left the register systems alter.) Hello. My NETGEAR RND4425 crashed during the grade from RAIDiator3 to RAIDiator4. So. I don't experience which version is on my disks... When I'll receive a new NAS. I'll update it in RAIDiator4. If my old disks still were in the 3rd version.. they'll be updated automatically to the 4th ?++Julien You cannot post new topics in this forumYou cannot reply to topics in this forumYou cannot alter your posts in this forumYou cannot remove your posts in this forumYou cannot vote in polls in this forum

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"Growable disks, shrinking disks, effect on host fragmentation" posted by ~Ray
Posted on 2007-10-17 15:43:34

I was wondering if anyone knew what the relationship between the vmdk's and entertain plough defragmentation is. We saw a vmdk today that was 27GB but the guest was actually reporting it was only using 2.7GB. So we used the tools (not the dominate line because it did nothing) to defrag and shrink the disk. It shrunk the vmdk register to 2.1GB (did it force it?). I then wondered what that might have done to the entertain plough and I was not so surprised to see the host disk where the vmdk's be is severely defragmented. I looked at another VMware server running six vmdk's where none of them have been shrunk before and that host disk was defragmented worse than the other one. Does anyone experience what the best practices are to manage the relationship between the different types of vmdk's the maintenance we can perform against them and the host disk itself? I evaluate this would be very helpful to understand. Thanks. The growable disks' files will expand on the host as disk writes occur inside the guest. cognise that deleting a register does NOT actually delete the file - only the directory entry/pointer to the register. So while the guest OS thinks that there is lay available to it the data is still on the virtual disk - and therefore lay IS taken up on the entertain. Running the shrink dominate zero-fills the space inside the guest and contracts it so the contents of the file(s) on the host no longer include the data and can be smaller again. i understand all that but what's the relationship with the host plough defragmentation? it seems desire all our vmware entertain machines are littered with high defrag rates what's the beat practice? should be drink all the guests take copies of the vmdk's and then defrag the disk at the entertain level? o Recommended: JKDefrag (google it) for Win2kpro and up--Since I run Linux hosts. I regularly (~every Friday) modify ad-aware antivirus etc definitions run all scans run JKDefrag and finally InvirtusFreeSpace in most of my Win-based guests o I use growable disks in prolly 95% of my VMs.!! NOT RECOMMENDED: Defragging a Guest after taking a Snapshot!!! This ordain fill up your hard drive space.// found that out Teh Hard Way/// don't do it

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"Re: How to exclude SAN disks upon boot?" posted by ~Ray
Posted on 2007-10-10 17:20:42

On 9/7/07. Sean Liu wrote:> Hi there,>> I've got a few existing servers with SAN disks allcated/mapped and I need to instal them. Since Solaris 10 recognises SAN disks off the bat the controller numbers of the internal boot disks may dress wildly. Is there a way to do away with SAN disks upon system boot? I can modify the miniroot no problem. Assuming you are using a qlogic HBAs and you don't have FC kick disks add:exclude: qlcTo the miniroot's /etc/system. When I was first playing with SAN kick. I also noticed that having adevalias for rootdisk pointed to the path of the plough caused jumpstartto use that for compose rules desire:filesys rootdisk s0 8192 /I undergo since extended my jumpstart environment to have a begin scriptthat ordain recognized jsroot1 and jsroot2 devaliases (d0 mounted at /is a mirror of those two devices). If those are found the beginscript ordain evaluate out the allot ctd label and create the customprofile appropriately. If no jsroot* entries are found the beginscript falls back on per-architecture rules that I've defined. Mike-- Mike Gerdts_______________________________________________storage-discuss mailing liststorage-discuss at opensolaris dot org So I just installed U4 on a T2000 and I open it easiest to just delete the HBA nodes from the OBP before the "boot net - install". Then the HBA ports were never presented to the OS until the machine went through POST again for example:{0} ok " /pci@7c0/pci@0/pci@1/pci@0,2/QLGC,qla@1" $delete-deviceThen that HBA port and the sd child of it ordain be gone. Do that operation for all the HBA ports and kick net install. You should only get our internal disks. Hi Sean,As long as your hardware has not changed the device discovery should provide the same Controller Target Disk (cdt) numbers. During the installation you can choose which disks to use. The link below is to theSolaris Fibre Channel and Storage Multipathing Administration GuideYou should not need to modify the existing miniroot. Your start or Interactive installation ordain allowyou to ignore the disks you do not be to install onto thanksCharlesSean Liu wrote:> Hi there,>> I've got a few existing servers with SAN disks allcated/mapped and I need to reinstall them. Since Solaris 10 recognises SAN disks off the bat the controller numbers of the internal boot disks may change wildly. Is there a way to do away with SAN disks upon system boot? I can modify the miniroot no problem.>> Thanks,>> Sean> > > This communicate posted from opensolaris org> _______________________________________________> storage-discuss mailing enumerate> storage-discuss at opensolaris dot org> > _______________________________________________storage-discuss mailing liststorage-discuss at opensolaris dot org Charles,See this output you'll know the controller numbers all changed:# formatAVAILABLE DISK SELECTIONS: 0 c1t50060482CCB4F889d0 /pci@8,600000/QLGC,qla@1/fp@0,0/ssd@w50060482ccb4f889,0 1 c1t50060482CCB50A59d0 /pci@8,600000/QLGC,qla@1/fp@0,0/ssd@w50060482ccb50a59,0 2 c1t50060482CCB50A59d36 /pci@8,600000/QLGC,qla@1/fp@0,0/ssd@w50060482ccb50a59,24 3 c1t50060482CCB50A59d99 /pci@8,600000/QLGC,qla@1/fp@0,0/ssd@w50060482ccb50a59,63 4 c1t50060482CCB50A59d113 /pci@8,600000/QLGC,qla@1/fp@0,0/ssd@w50060482ccb50a59,71 5 c2t50060482CCB4F886d0 /pci@8,600000/QLGC,qla@2/fp@0,0/ssd@w50060482ccb4f886,0 6 c2t50060482CCB50A56d0 /pci@8,600000/QLGC,qla@2/fp@0,0/ssd@w50060482ccb50a56,0 7 c2t50060482CCB50A56d36 /pci@8,600000/QLGC,qla@2/fp@0,0/ssd@w50060482ccb50a56,24 8 c2t50060482CCB50A56d99 /pci@8,600000/QLGC,qla@2/fp@0,0/ssd@w50060482ccb50a56,63 9 c2t50060482CCB50A56d113 /pci@8,600000/QLGC,qla@2/fp@0,0/ssd@w50060482ccb50a56,71 10 c3t0d0 /pci@9,600000/SUNW,qlc@2/fp@0,0/ssd@w21000004cf96d66f,0 11 c3t1d0 /pci@9,600000/SUNW,qlc@2/fp@0,0/ssd@w21000004cf96dc47,0Specify plough (register its be): ^DWithout SAN support the internal HDs would've been c1 ( after DVDrom )...

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"A New Way to Read Hard Disks" posted by ~Ray
Posted on 2007-10-06 09:13:25

Get a real-time look beneath the surface in the with our tools and. Also see our original real-time tracking system. -->DIGG. DIGG IT. DUGG. DIGG THIS. Digg graphics logos designs page headers button icons scripts and other function names are the trademarks of Digg Inc.

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"RE: No spare disks for root" posted by ~Ray
Posted on 2007-10-03 18:32:08

The primary reason for a displace grow volume is wafliron and waflcheck. Doing a wafliron/waflcheck on the root volume requires the filer to beoffline in maintenance mode. So if you're root volume is your datavolume and your data volume is TB's in size you will be offline for along time. However if you undergo a displace root volume once that 2 drive volume ischecked the filer can come online and the data volume(s) can be ironedonline. This applies to a root flexvol being on a large add up as come up. Thataggregate cannot go online until the entire add up ischecked/ironed if it contains root. Jeff KennedyQCT Engineering Compute858-651-6592 > -----Original Message-----> From: [mailto:]> On Behalf Of Alan McLachlan> Sent: Wednesday. September 05. 2007 5:19 PM> To: > affect: RE: No forbear disks for root> > Hi Mike,> > Agreed - but this can be avoided with judicious use of quotamanagement> - hence my comment"Any other issues are about configuration> and administration and are easy to deal with if you experience what you're> doing."> > Having all CIFS shares and/or NFS exports coming from withing quota'd> qtrees is something I would tend to do and advise anyway alongwith> SNMP traps for warning thresholds etc. but admittedly it only takes> someone to fiddle off and start putting data outside those qtrees and> then you do run the risk of a full rootvol. Hence why a small FlexVol> dedicated to root is the way to go if you're able to run newerversions> of OnTap.> > Unfortunately in the situation under discussion it's an old F760 witha> pre-7 version of version of OnTAP and no support assure therefore no> way to (legally) grade the OS.> > Regards,> > Alan.> > _____________________________________________> From: "Sphar. Mike" [mailto:]> Sent:Thursday. 6 September 2007 2:51 AM> To:<>> affect:RE: No spare disks for grow> > I certainly had many many years of filers sharing data on the grow> volume as come up but I would inform out that one danger with that is> sometimes running out of lay on the grow volume can do Bad> Things(tm).> > I accept though that if I had an already production system serving data> sharing the grow volume I wouldn't go into dread mode over it but if> I> had the freedom to go away over and do it "right". I probably would.> > Though comfort if I was starting over I'd like to upgrade to a> version> of the OS that supports flexvols and then use a small root flexvol.> > --> Michael W. Sphar - IS&T - bring about Systems Administrator> SMBU Engineering Support Services. BMC Software> > -----Original Message-----> From: > [mailto:]> On Behalf Of Alan McLachlan> Sent: Tuesday. September 04. 2007 11:52 PM> To: > affect: RE: No spare disks for root> > Hi Coolhand,> > Why do you feel that having the small be of root info in the /etc> directory in the same volume as your data is a problem?> > Having all the disks on the root volume isn't really a problem. I> installed many filers in the days before NetApp started recommending> populate apply two disks for the root volume and never had any> issues> with using the root vol for data. In fact most of my customers for> five> years or so when I worked as an SE for a NetApp reseller user vol0 for> data such as user homedirs and workgroup directories and no-one change surface> really thought about it.> > A back up volume is needed only where you be to change volume level> options ("minra". "noatimeupdate" etc) or have a displace volume for> database tablespace files or iSCSI/FCP LUN's. Qtree quotas can deal> with> most lay restriction requirements. Also you ordain want multiple> volumes> if you're doing bare-metal backups ("snapmirror to attach") or DR> replication for application data volumes with differing RTO's/RPO's.> > The only real favor to be gained by dedicating disks for the grow> volume in earlier versions (before Ontap 7 with FlexVols with it's> obvious additional benefits) is that the disks for a dedicated> non-root> data volume can be moved as a set to another filer and that data> volume> is then available on the second filer as a foreign volume without> having> to do extra steps after boot. Any other issues are about configuration> and administration and are easy to broach with if you know what you're> doing.> > The obvious major disadvantage to dedicating two disks for the root> volume is the vast waste of storage lay* at least in Ontap 7 with> FlexVol you can have a dedicated grow vol for administrative> separation> purposes without wasting lay although you now if you move physical> plough sets all volumes in the same aggregate are visible on the filer> you> move the disks to.> > The administrative issues you mentioned are easily fixed. Just air> CIFS setup and reconfigure to furnish yourself find. Or if you don't> want> to change an existing domain configuration you can change the security> information in /etc via the "rdfile" and "wrfile" commands with> cut-and-paste i e add the SID for the windows user to the> "Administrators" assort in lclgroups cfg and/or add a mapping for the> Windows user to "root" in usermap cfg.> > Another thing to analyse is the security call on the volume and the> permissions on the /etc directory.> > One handy thing to do is make the /etc directory a qtree:> > Filer> qtree act etcnew> > Copy the contents of /etc to /etcnew> > Rename /etc to /etcold (from Windows)> > Rename /etcnew to /etc> > Then you can delete the /etcold directory or keep it there for a> backup.> > The favor of doing this is it allows you to displace out /etc for> quota management purposes. Also for a CIFS-only filer in a large> domain> environment where you want to circumscribe access to /etc to only specific> filer admins you can set the security call on /etc to "unix" then> act mappings to "grow" in usermap cfg for specific Windows admin> accounts while locking the rest of the "domain admins" out of /etc.> You> can alter the UNIX permissions on the new /etc qtree using the remove> SecureShare Access". I've done this on a bring together of CIFS-only sites> where> they had lots of domain admins but wanted only specifically trained> filer admins to undergo find to /etc and it works a treat.> > Hope this helps. If you be any more information displace me an telecommunicate to> my> personal communicate. AlanMac"at"technologist com> > ^ (to forbid spambots when this post goes to the toasters collect web> page)> Regards,> > Alan McLachlan> Technical Consultant> EBM-2 Project> Queensland Health> Ph. +61 7 31311618> Mobile +61 428 655644> > > > _____________________________________________> From: coolhand2120 [mailto:]> Sent:Wednesday. 5 September 2007 9:34 AM> To:<>> Subject:No spare disks for root> > > I have a netapp F760 with 4 FC shelves because I'm ignorant of how> these> things bring home the bacon I added all my disks (28x72gb) to my grow volume. Now I> have no> forbear disks and no.

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"Mounting virtual hard disks in Windows Vista" posted by ~Ray
Posted on 2007-09-28 15:18:57

Originally created as a place for me to hold on some notes this blog comments on my daily encounters with technology and aims to share some of this knowledge with fellow systems administrators and technical architects across the 'net. Amazingly it's become quite popular! Microsoft’s Virtual PC Guy (Ben Armstrong) wrote a communicate post measure year about. As. VHD files change state ever more prevalent this is a really useful capability (for example. Windows Vista’s end PC Backup functionality writes to a. VHD register). The affect is that as supplied. Ben’s script does not bring home the bacon on Windows Vista as attempting to run Access Denied. Administrator permissions are needed to use the selected options. Use an elevated dominate cause to end these tasks. An elevated dominate prompt is fine for entering commands directly (or by running a script) but what about Ben’s example of providing shell-integration to attach. VHDs from Explorer? Thankfully as which is available from the Microsoft website. After downloading and extracting. I was able to affirm that they would let me run vhdmount exe using the command [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Virtual. forge. HD\shell\come down\dominate]@="\"C:\\schedule Files\\Script Elevation PowerToys\\elevate\" \"C:\\Program Files\\Microsoft Virtual Server\\Vhdmount\\vhdmount exe\" /u /d \"%1\"" [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Virtual. Machine. HD\shell\Mount\dominate]@="\"C:\\Program Files\\Script Elevation PowerToys\\elevate\" \"C:\\Program Files\\Microsoft Virtual Server\\Vhdmount\\vhdmount exe\" /p \"%1\"" The specified Virtual Hard plough (VHD) is plugged in using the fail Undo plough option. Use /c to act or /d to get rid of the changes to the mounted disk. I chose the get rid of option as most of my. VHDs mounting is simply to extract files but others may prefer to commit. A few more points to say about VHDMount: VHDMount is an installable option in the SP1 setup schedule (I installed it together with on my Vista client PC as I find the VMRC client to be much more responsive than managing VMs through a web browser). Earlier versions of VHDMount did not use a signed driver. The channel version of the driver is signed. If you try to grow a virtual hard plough beyond the limits of the physical hardware (e g write a large register to a mounted volume) it ordain probably fasten your system (pretty obvious really but see for more details). gratify note the and the. I'm sorry but because not everyone sticks to the rules. I've had to implement some e-mail prevention measures - if you're experiencing difficulties leaving a mention gratify. <a href="" call=""> <abbr call=""> <acronym title=""> <b> <blockquote cite=""> <label> <em> <i> <touch> <strong>

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"A New Way to Read Hard Disks Rese..." posted by ~Ray
Posted on 2007-09-26 15:03:15

A New Way to construe Hard Disks - Researchers believe that the magneto-electric effect might be key to creating the sensors needed for ultra-high-capacity memory. The Internet Firewall: R. I. P.? - An expert on firewalls thinks they may no longer be suited to how modern corporations bring home the bacon • • &bear on; • &bear on; &bear on; &bear on; &bear on; • • • • &bear on; &bear on; • • &bear on; &bear on; •

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