Thanks for the tip, Bill. But in our environment, (618 tapes in the L700 library, plus over 1000 on a rack), that would take quite a long time...
BTW, we think it's a firmware problem... We are running 38D0 on our LTO-2 drives. I just spoke to my STK CE, and he said the latest STK has certified is 4C60, which we will install tomorrow. We're also upgrading the library code from 3.07.00 to 3.09.00. -Robin William Boyer <[EMAIL PROTECTED] T.NET> To: ADSM-L@VM.MARIST.EDU Sent by: "ADSM: cc: Dist Stor Subject: Manager" Re: Very slow restores (days), hours to locate files <[EMAIL PROTECTED] T.EDU> 07/07/2005 11:11 AM Please respond to "ADSM: Dist Stor Manager" TO identify the volumes with the corrupted CM, just do a checkin with CHECKL=YES. This will then issue a tapealert message for a tape that has a bad/corrupted CM. If it's a scratch tape, then the CM will be written as you write to the tape. For tapes with data on them, you can MOVE DATA to another drive and let it go scratch, or use the tapeutil utility to mount the tape and forward to the end of the tape. That causes the drive to re-write the CM index. That is after you've identified the problem that is corrupting your CM chips. It could be firmware, but at one client site of mine, it was a faulty drive. Bill Boyer "Some days you're the bug, some days you're the windshield" - ?? -----Original Message----- From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] On Behalf Of Rejean Larivee Sent: Thursday, July 07, 2005 10:51 AM To: ADSM-L@VM.MARIST.EDU Subject: Re: Very slow restores (days), hours to locate files Hello Robin, the TSM server does not maintain the LTO memory cartridge and would therefore not be the source of the corruption. A corrupted memory cartridge comes from defective media, faulty/dirty hardware/drive or firmware/microcode problem. As others have already recommended, you should consider upgrading the firmware of the LTO drives to take care of past problems with LTO CM. It appears the latest firmware for the LTO GenII drives at this time is 53Y2, for fiber attached drives. You can verify the firmware of your drives using "lscfg -vl rmt*". For a list of what is fixed in 53Y2, see here : http://www-1.ibm.com/support/docview.wss?rs=0&uid=ssg1S1002360 Have a great day ! Rejean Larivee IBM Tivoli Storage Manager support Robin Sharpe <[EMAIL PROTECTED] LEX.COM> To Sent by: "ADSM: ADSM-L@VM.MARIST.EDU Dist Stor cc Manager" <[EMAIL PROTECTED] Subject .EDU> Re: Very slow restores (days), hours to locate files 07/06/2005 04:12 PM Please respond to "ADSM: Dist Stor Manager" Sorry about the omission, Rich. These restores were started via the Windows GUI. I believe they just selected the C: drive and specified "Restore if newer" (an option which I don't think is available via the command line!). I believe this created a No-Query Restore, because it did create a Restartable Restore.... AFAIK there is a one-to-one correspondence (right?) In the meantime, I checked the Technote... Then, I checked my Activity Log for the last 24 hours... and I found 33 LTO volumes that presented the cartridge memory message! So, now I have the smoking gun, and I suppose I could do "move data" against those volumes, but I suspect there are many more, and I would like to know what's causing the corruption and how to prevent it! If I don't hear anything from the group, I'll open a call with Tivoli. Thanks very much for the information! -Robin Richard Sims <[EMAIL PROTECTED]> Sent by: "ADSM: To: ADSM-L@VM.MARIST.EDU Dist Stor cc: Manager" Subject: <[EMAIL PROTECTED] Re: Very slow restores (days), hours to locate files T.EDU> 07/06/2005 10:30 AM Please respond to "ADSM: Dist Stor Manager" Please, everyone, when posting questions about restorals, give details about the manner in which the restoral was invoked so that we can get a sense of what kind is involved (NQR, Classic) and what is involved. Now... Robin, have a look at IBM Technote 1209563, which I ran across in doing research yesterday. I recall such long-duration- restores in the past, and as I recall they have involved the factors noted in the Technote. LTO is also known for backhitch delays, so that's another contributor in positioning on tape. Richard Sims