Direct storage access Backup ULTRA Slow

[mthlisboa]

Hello everybody,

I have a problem with [SAN] Backups.

My scenario is:
Backup Server and Proxy Server on a Physical machine with 96GB of RAM.
This server has access to a VMFS Datastore over FC. This datastore is a IBM v7000 Lun.

I can see the datastore on Windows disk management, offline and healthy.
The problem is, when i start a job, i can see that the SAN mode is in use, but speeds are ultra slow (200-400KBPS). I don't know what to do anymore. Does anyone already faced such a slow performance o SAN backups?

I opened a case but nothing conclusing yet. 03474362

[DavoudTeimouri]

Did you configure MPIO on Windows Server?
MPIO allows server to use multiple path to LUNs.

[mthlisboa]

HI Davoud,

Yes MPIO is installed and configured using the vendor DSM, from IBM. It's working fine.

[bdufour]

what are the bottleneck stats in the jobs?

[HannesK]

Hello,
and welcome to the forums.

That sounds really strange. I sent some ideas from my side to support as I do not fully understand the Spanish case

Do you have a chance to try backup from storage snapshots (BfSS)? Because with BfSS we use different technology to transfer data. (That would require flashcopy license on the IBM storage).

Best regards,
Hannes

[diegodco]

Hi
I had a similar problem. Fix it by changing the port's switch port speed from the server.