I need help, I cannot figure out how to troubleshoot this problem further.

We have a rebranded 3070A with ~200 VMs running on it. Maybe 30 on a batch of FC disks and the rest on 2 aggrs of 33 SATA drives each. None of the VMs are disk IO intensive. When I try and copy a VM to a new volume I get EXTREMELY slow speeds, something on the order of 3 gig an hour. I am also seeing incredibly slow Snapvault transfers and initializations. I think that in part we are hitting the sequential read bug, but this occurs even on volumes that do not have SIS enabled. For instance I have a snapvault job running that’s been going for 4 days (!) and only xfered 260 gig. And it’s an update so should always be hitting data (and thus not having the bug).

Statit shows the drives all under 15% utilization. It’s over dual 10gigE connections with the preferred adapter set (there are also 2 1 gig VIFs on this box for user and admin access).

I’m at a loss. IBM says we need to upgrade (we are at 7.2.4) but I am concerned that it’s not going to fix our problem and downtime windows are difficult to get so I want to make sure it’s resolved with as little interruption as possible. Any suggestions on troubleshooting?

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