Over Labor Day weekend, we are going to upgrade the Netware OS on one of our servers. This is a critical server, and there is 280G of data. In the event a restore is necessary, you can see my concern. At 6G an hour, it will take approx 47 hours to restore (there will be a 100Gb ethernet card, so it may not take quite 47 hours, but it will still take a while). Between now and then I'm trying to get some disk space to put all the backed up data to disk then try testing different restore senarios to a test server, i.e. restore the directories first.
I don't know if anyone has Novell experience, my expertise are in unix, but I'm told you cannot restore compressed files from a traditional drive to nss drives. We have to allocate space for traditional drives on the server, restore to the traditional drives, uncompress the files, then copy them to the nss drives (We're trying to get off the traditional drives). I don't think there is, but does anyone know if there is an option in TSM that will let us uncompress files when we restore them if they were compressed before they were backed up? Also, does anyone have an idea about the speed for a normal restore on a Novell box using a 100Gb ethernet card? Thanks for the advice below,,,I am going to try the suggestion when testing my restore. Debbie Maurice van 't Loo <[EMAIL PROTECTED]> Sent by: "ADSM: Dist Stor Manager" <ADSM-L@VM.MARIST.EDU> 08/04/2005 09:57 AM Please respond to "ADSM: Dist Stor Manager" To: ADSM-L@VM.MARIST.EDU cc: Subject: Re: [ADSM-L] Technote 1200328 Hi Debbie, If your diskpool is big enoufh, you can try a "move nodedata <nodename> from=<tapepool> to=<diskpool>" first, so you can restore from disk. Than you know if the problem is in the library or not. I also know that Netware is not so fast in building big directory structures, so you can also win alot with dirmc, than TSM restores the directory stucture first, and than the files. If posible you can even use a small diskpool for dirmc's only, what you don't migrate to tape, this is also a big winner when restoring "slow" FS's as Netware and NTFS. Regards, Maurice ----- Original Message ----- From: Debbie Bassler To: ADSM-L@VM.MARIST.EDU Sent: Wednesday, August 03, 2005 10:19 PM Subject: Re: [ADSM-L] Technote 1200328 Oops, I meant to include that in the email. The bottom of this doc shows the transfer rates.. Lawrence Clark <[EMAIL PROTECTED]> Sent by: "ADSM: Dist Stor Manager" <ADSM-L@VM.MARIST.EDU> 08/03/2005 04:10 PM Please respond to "ADSM: Dist Stor Manager" To: ADSM-L@VM.MARIST.EDU cc: Subject: Re: [ADSM-L] Technote 1200328 What did the tranfer rate show as? 1024 x 6.24 = 6389MB (megabyte) Network is usually in Megabit, yes? 6389MB x 8 = 51112 (megabit) >>> [EMAIL PROTECTED] 08/03/2005 3:49:17 PM >>> This doc offers alot of information about improving performance. I'm especially interested in this because it took 56 minutes to restore 6.24G of data, from Novell server to Novell server, over a 100MB pipe. Our TSM version is 5.1.1 ( I know,,,we need to upgrade)...and the client version is 5.2. In the dsmserv.opt file the MIRRORWRITE DB = SEQUENTIAL. According to this doc, we'll get better performance is we change MIRRORWRITE DB to PARALLEL. I thought I would do this then add the DBPAGESHADOW = YES parameter. (the MIRRORWRITE LOG = PARALLEL) My plan is to make small changes to see if there is an impact, positive or negative. We have 2G of virtual memory, so I changed the bufpoolsize from 262144 to 524288 and thought I'd make the MIRRORWRITE DB change also. Has anyone made these changes and seen any performance improvements/degredations? Any experiences or advice is welcome..... Thanks for any input, Debbie