Author: Alexander Lazarevich <alazarev AT ITG.UIUC DOT EDU>
Date: Fri, 24 Sep 2004 17:17:27 -0500
We have TSM 5.1.6.5 on win2k server. library is overland neo 4100 (60 tape capacity) with 2 X HP LTO-2 drives. We need another 12TB of backup capacity. We are considering getting something other that
Author: "Coats, Jack" <Jack.Coats AT BANKSTERLING DOT COM>
Date: Fri, 24 Sep 2004 18:25:46 -0500
Yep, you can do it. Overland also sells a virtual tape library, but I don't know about their prices, and so do other vendors. It is basically a bunch of disk, but looks like tapes. Why is virtual tap
Author: Alexander Lazarevich <alazarev AT ITG.UIUC DOT EDU>
Date: Mon, 27 Sep 2004 10:41:34 -0500
Overland's Reo series is a DAS wrapped inside a virtual tape emulator. That costs 3 times as much as the equivalent capacity of DAS. An Overland Tech rep told me the only difference between a DAS and
Author: Jim Sporer <james.sporer AT DOIT.WISC DOT EDU>
Date: Mon, 27 Sep 2004 11:05:54 -0500
EMC also has a tape emulator that goes in front of their ATA storage. We couldn't see any benefit to having tape emulation for TSM storage so opted to just use the ATA storage. Jim Sporer At 10:41 AM
Author: Otto Schakenbos <otto.schakenbos AT TELEFLEX DOT COM>
Date: Mon, 27 Sep 2004 19:02:09 +0200
maybe one thing that you can do with a fc attached virt. tape emulator is lan free backups? or can you do lanfree with das as well? regards Otto Schakenbos System Administrator TEL: +49-7151/502 8468
I was under the impression that the TSM database MUST be backed up to tape. Is this true? Also, does anyone know of tape emulator software only? (without having to purchase a new disk array with that
Author: "Rushforth, Tim" <TRushforth AT WINNIPEG DOT CA>
Date: Mon, 27 Sep 2004 15:40:29 -0500
You can backup the TSM DB to devclass of type file. I was under the impression that the TSM database MUST be backed up to tape. Is this true? Also, does anyone know of tape emulator software only? (w
Author: "Prather, Wanda" <Wanda.Prather AT JHUAPL DOT EDU>
Date: Tue, 28 Sep 2004 15:57:18 -0400
If you read the thread "D2D on AIX" over the past week, it has lots of details on the pros and cons of using Disk only for backup. The answer overall, is that with TSM you can use disk only for backu
Author: "Johnson, Milton" <milton.johnson AT CITIGROUP DOT COM>
Date: Tue, 28 Sep 2004 16:25:06 -0400
I am not quite sure what you meant by "with TSM you can use disk only for backups instead of onsite tape". I do not see any reason why you can not use FILE device types for both primary and copypool
Author: "Prather, Wanda" <Wanda.Prather AT JHUAPL DOT EDU>
Date: Tue, 28 Sep 2004 16:34:11 -0400
It was badly worded, I just meant you can use DAS-type hardware for your TSM backups, as opposed to tape hardware. I am not quite sure what you meant by "with TSM you can use disk only for backups in
I second the motion. We've had RAID controllers go belly-up before, too. Eugh. That's a wire spool. And unfortunately it's a loop; (like an 8-track) so it's not really useful for us. - Allen S. Rout
Author: "Coats, Jack" <Jack.Coats AT BANKSTERLING DOT COM>
Date: Tue, 28 Sep 2004 15:56:36 -0500
I agree... I even had a vendor CE pull one disk, figure out it was not the right one, put it back in, then IMMEDIATELY pull the 'bad' disk. ... It took days to rebuild the array from backups, and the
Johnson, Milton wrote: I am not quite sure what you meant by "with TSM you can use disk only for backups instead of onsite tape". I do not see any reason why you can not use FILE device types for bot
Author: "Mark D. Rodriguez" <mark AT MDRCONSULT DOT COM>
Date: Tue, 28 Sep 2004 22:43:08 -0500
I am not quite sure what you meant by "with TSM you can use disk only for backups instead of onsite tape". I do not see any reason why you can not use FILE device types for both primary and copypool
Mark, No, a VTL that worked in a SAN environment wouldn't need the same code as SANergy because there would be no need for a shared file system - access to the volumes would be shared, but sequential
Author: "Johnson, Milton" <milton.johnson AT CITIGROUP DOT COM>
Date: Wed, 29 Sep 2004 08:47:54 -0400
A virtual tape library operates and connects just like a physical tape library in a SAN environment. The VTL, TSM server and your client are connected to the SAN so a LANFREE back-up works using TSM'
Sal, No, not too simplistic. The environment you seek is quite feasible using file devclass volumes and built-in TSM features. What isn't feasible today is using this as the primary means to move all
Milton, After I wrote the last message, I noticed that FalconStor has certified TSM SAN clients with their product, which is used by EMC and other manufacturers. I was thinking that it would be more
Author: "Johnson, Milton" <milton.johnson AT CITIGROUP DOT COM>
Date: Wed, 29 Sep 2004 09:18:52 -0400
Bill, I am presently implementing the S2100-ES and S2100-DS VTLs by Sepaton which are also TSM certified. While at present I am using them as directly fiber attached devices to my TSM server, I chose
Author: Curtis Stewart <Curtis.Stewart AT LAWSON DOT COM>
Date: Wed, 29 Sep 2004 08:21:47 -0500
Because there's software in the VTL that emulates tape drives. To TSM it's just another tape library. Curtis curtis.stewart AT lawson DOT com "Mark D. Rodriguez" <mark AT MDRCONSULT DOT COM> Sent by: