RE: [Veritas-bu] Disk backup - Storage Hardware configurations

[Paul Keating]

Title: Message

So you're building your LUNs RAID5 4+1, then presenting multiple LUNs to the server and striping across them with your VM, or what?

 

or is each DSSU only the size of 4 disks.

 

Paul

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Carlisle, D Renee
Sent: March 23, 2006 1:55 PM
To: [EMAIL PROTECTED]; Ambrose, Monte
Cc: veritas-bu@mailman.eng.auburn.edu
Subject: RE: [Veritas-bu] Disk backup - Storage Hardware configurations

We are just starting to set up DSU storage and have completed some extensive performance tests.  So far, we have found RAID5 4+1 works best with our file system (small files) backups and RAID3 4+1 works best with our database and raw backups.  There is still some testing going on as far as buffer settings, we are between 256k and 512K buffer settings and are still not sure which is going to work out best for us.  These tests have all just been done in a test environment, we won't know if we have to tweak anything for production for another month or so.

 

 

 

Reneé Carlisle
Sr. Systems Administrator
675 Basket Road
Webster, NY 14580

Jer 29:11-13

 

 

585-216-0497 (w)
585-472-2360 (c)

 

 

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From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED]
Sent: Thursday, March 23, 2006 4:57 AM
To: Ambrose, Monte
Cc: veritas-bu@mailman.eng.auburn.edu
Subject: Re: [Veritas-bu] Disk backup - Storage Hardware configurations

Hi Monte,

  I did one install with EMC DMX1000 disk with hardware mirroring used for a DSSU and I have to say I found performance wasn't great. Worse than LTO2 performance but this was writing to a fairly small number of physical drives, though performance wasn't an issue so I didn't spend a lot of time tuning it,

                cheers Andy.

"Ambrose, Monte" <[EMAIL PROTECTED]> Sent by: [EMAIL PROTECTED] 23/03/2006 01:54

To:        <veritas-bu@mailman.eng.auburn.edu>         cc:                 Subject:        [Veritas-bu] Disk backup - Storage Hardware configurations

I wanted to get a feel for what type of disk storage is being used out there for disk based backups.  I am specifically looking for SAN attached storage ATA, SATA and what type of RAID is used and how it is performing overall.   The NBU 6.0 tuning guide shows RAID-5 but I am wondering if anyone is using RAID-10 or others.
 
Thanks, Monte
 

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