|
Update: [Veritas-bu] tape drive performance on image copies
2002-08-30 16:27:45
|
Subject: |
Update: [Veritas-bu] tape drive performance on image copies |
|
From: |
epforgette AT overnite DOT com (Eric P. Forgette) |
|
Date: |
Fri, 30 Aug 2002 16:27:45 -0400 |
On my E4500, running NetBackup 4.5 on Solaris 2.8, I made the following
changes:
added 262144 to /usr/openv/netbackup/db/config/SIZE_DATA_BUFFERS
added 32 to /usr/openv/netbackup/db/config/NUMBER_DATA_BUFFERS
Made the max shared memory 4 gig
/etc/systems
set shmsys:shminfo_shmmax=4294967295
On a media server with less memory, I set NUMBER_DATA_BUFFERS to 16.
I'm getting 2 times the throughput on normal backups and 3 times the
throughput on image duplication!
-Eric
--
Eric P. Forgette
Unix Systems Administrator
http://perlvault.sourceforge.net/
> "Donaldson, Mark" wrote:
>
> I've found two oblique references in documents and one newsgroup
> posting suggest that 256K is max for LTO. Not exactly carved in stone
> but might be good enough for testing.
>
> -M
>
|
| <Prev in Thread] |
Current Thread |
[Next in Thread> |
- [Veritas-bu] tape drive performance on image copies, Eric Forgette
- [Veritas-bu] tape drive performance on image copies, Donaldson, Mark
- [Veritas-bu] tape drive performance on image copies, Ballowe, Charles
- [Veritas-bu] tape drive performance on image copies, Donaldson, Mark
- [Veritas-bu] tape drive performance on image copies, Ballowe, Charles
- [Veritas-bu] tape drive performance on image copies, Donaldson, Mark
- Update: [Veritas-bu] tape drive performance on image copies,
Eric P. Forgette <=
|
|
|
