Backup Central

Just wondering what kind of throughput are you getting with an HP Ultrium LTO4 Drive with a Scalar 50 (or even if you just have the drive)

Its currently taking our system 27 hours to write 900 Gb of data.. and I'm trying to find a reasonable benchmark out there so that i can try to isolate this problem

Thanks

Just wondering what kind of throughput are you getting with an HP Ultrium LTO4 Drive with a Scalar 50 (or even if you just have the drive)

Its currently taking our system 27 hours to write 900 Gb of data.. and I'm trying to find a reasonable benchmark out there so that i can try to isolate this problem

Thanks

SCSI or FC interface???

You have to know your backup files is those million files type also.

With reasonable compression (SATA drives?) you should achieve 900 GB in
approx. 6 hours using MSL6000 Ultriun 1840 FC attached tape library
utilizing LTO-4 media.

Lance

-----Original Message-----
From: backups-bounces < at > backupcentral.com
[mailto:backups-bounces < at > backupcentral.com] On Behalf Of Jayles
Sent: Tuesday, August 04, 2009 9:23 PM
To: backups < at > backupcentral.com
Subject: [Backups] HP Ultium LT04 Drive and Scalar 50



sdimarco87 wrote:
Just wondering what kind of throughput are you getting with an HP Ultrium
LTO4 Drive with a Scalar 50 (or even if you just have the drive)

Its currently taking our system 27 hours to write 900 Gb of data.. and I'm
trying to find a reasonable benchmark out there so that i can try to isolate
this problem

Thanks


SCSI or FC interface???

You have to know your backup files is those million files type also.

+----------------------------------------------------------------------
|This was sent by jaylesneo < at > gmail.com via Backup Central.
|Forward SPAM to abuse < at > backupcentral.com.
+----------------------------------------------------------------------



_______________________________________________
If you'd like to join the discussion, go to http://www.backupcentral.com and
get
a user id. Then subscribe to one or more of our mailing lists or follow the
discussions in one of our forums (http://www.backupcentral.com/phpBB2).


_______________________________________________
If you'd like to join the discussion, go to http://www.backupcentral.com and get
a user id. Then subscribe to one or more of our mailing lists or follow the
discussions in one of our forums (http://www.backupcentral.com/phpBB2).

Yes we are using Fibre Channel

with LTO4 media we are currently getting 75-90 Gb/Hour

any suggestions on where our bottle neck could be ? The Tape Library is directly connected to a server (the server has plenty of horse power) everything in our enviroment in 1Gbps Ethernet.. ? Any Idea ?

I'm fixated on the fact that it may be a firmware\driver problem.. ie out of date or incorrect

Follow this link for some great troubleshooting techniques that are good for any backup software.

Document ID: 285756
http://support.veritas.com/docs/285756

I went through the procedures/tests to find in the end it was a network issue. The results of the D2D, using another media server, etc., convinced the network team to investigate.
We currently use Backup Exec but will be migrating to Bridgehead software.
Good Luck,
Lance

-----Original Message-----
From: backups-bounces < at > backupcentral.com [mailto:backups-bounces < at > backupcentral.com] On Behalf Of sdimarco87
Sent: Wednesday, August 05, 2009 11:10 AM
To: backups < at > backupcentral.com
Subject: [Backups] HP Ultium LT04 Drive and Scalar 50


Yes we are using Fibre Channel

with LTO4 media we are currently getting 75-90 Gb/Hour

any suggestions on where our bottle neck could be ? The Tape Library is directly connected to a server (the server has plenty of horse power) everything in our enviroment in 1Gbps Ethernet.. ? Any Idea ?

I'm fixated on the fact that it may be a firmwaredriver problem.. ie out of date or incorrect

+----------------------------------------------------------------------
|This was sent by stefano.dimarco < at > ofina.on.ca via Backup Central.
|Forward SPAM to abuse < at > backupcentral.com.
+----------------------------------------------------------------------



_______________________________________________
If you'd like to join the discussion, go to http://www.backupcentral.com and get
a user id. Then subscribe to one or more of our mailing lists or follow the
discussions in one of our forums (http://www.backupcentral.com/phpBB2).

Follow this link for some great troubleshooting techniques that are good for
any backup software.

Document ID: 285756
http://support.veritas.com/docs/285756

I went through the procedures/tests to find in the end it was a network
issue. The results of the D2D, using another media server, etc., convinced
the network team to investigate.

We currently use Backup Exec but will be migrating to BridgeHead software.
Good Luck,
Lance

-----Original Message-----
From: backups-bounces < at > backupcentral.com
[mailto:backups-bounces < at > backupcentral.com] On Behalf Of sdimarco87
Sent: Wednesday, August 05, 2009 11:10 AM
To: backups < at > backupcentral.com
Subject: [Backups] HP Ultium LT04 Drive and Scalar 50


Yes we are using Fibre Channel

with LTO4 media we are currently getting 75-90 Gb/Hour

any suggestions on where our bottle neck could be ? The Tape Library is
directly connected to a server (the server has plenty of horse power)
everything in our enviroment in 1Gbps Ethernet.. ? Any Idea ?

I'm fixated on the fact that it may be a firmware\driver problem.. ie out of
date or incorrect

+----------------------------------------------------------------------
|This was sent by stefano.dimarco < at > ofina.on.ca via Backup Central.
|Forward SPAM to abuse < at > backupcentral.com.
+----------------------------------------------------------------------



_______________________________________________
If you'd like to join the discussion, go to http://www.backupcentral.com and
get
a user id. Then subscribe to one or more of our mailing lists or follow the
discussions in one of our forums (http://www.backupcentral.com/phpBB2).


_______________________________________________
If you'd like to join the discussion, go to http://www.backupcentral.com and get
a user id. Then subscribe to one or more of our mailing lists or follow the
discussions in one of our forums (http://www.backupcentral.com/phpBB2).

Thanks for the TIPs..

Hello

Can i ask you what kind of operating system are you using?
Under windows i experienced a failure called "shoe shining".
It did the same as your failure is doing.
It happened with U320 SCSI, but as far as i know the FC is an
"emulated" SCSI as well.

by