I have an aggr with two volumes on it. One of them is a 3.5 TB CIFS/NFS share that is reasonably fast to snapvault and a 1 TB NFS share (ESX VMs) that is exceptionally slow. As in it's been doing it's initial copy for over a week and still has not finished. NDMP backups of this volume are also quite slow, does anyone know why it would be so much slower then the other volume using the same spindles? The filer is not under extreme load, although occasionally it's pretty busy. Here is a "normal" sysstat:
CPU Total Net kB/s Disk kB/s Tape kB/s Cache Cache CP CP Disk
ops/s in out read write read write age hit time ty util
12% 1007 2970 8996 15769 9117 0 0 8 93% 49% : 41%
18% 920 2792 6510 11715 6924 0 0 8 99% 84% T 39%
15% 1276 3580 10469 15942 8041 0 0 10 92% 33% T 36%
13% 1487 3416 11347 15632 4907 0 0 11 89% 42% : 43%
17% 1417 3180 9890 14000 9444 0 0 9 98% 79% T 41%
13% 972 3704 9705 15427 9934 0 0 7 92% 46% T 51%
18% 1087 2947 11911 17717 4640 0 0 9 98% 33% T 47%
11% 1204 3358 11219 14090 5159 0 0 7 88% 100% : 50%
12% 1161 2808 9085 12640 5936 0 0 9 90% 33% T 44%
13% 981 4735 11919 16125 7097 0 0 9 92% 45% : 43%
15% 1158 5780 12480 17565 8266 0 0 10 92% 88% T 41%
I'm just having difficulty trying to determine why two volumes on the same spindles would be so different in the time it takes to do their initial transfer. Also, the VM's do not seem slower then those hosted on other aggregates (this one is 3 RG of 11 disks each, Ontap 7.2.4 on a 3070A IBM rebranded).
This message (including any attachments) contains confidential and/or proprietary information intended only for the addressee. Any unauthorized disclosure, copying, distribution or reliance on the contents of this information is strictly prohibited and may constitute a violation of law. If you are not the intended recipient, please notify the sender immediately by responding to this e-mail, and delete the message from your system. If you have any questions about this e-mail please notify the sender immediately.