On 06/15/2009 09:39 AM, Pasi Kärkkäinen wrote:
So the iSCSI target is running on domU, using the physical partitions as ZFS and exporting them as iSCSI LUNs ?
Correct.
Try testing the iSCSI LUNs from dom0 first.
> Run some real benchmarks on the
LUNs. ltp disktest for example. Or create some filesystem (ext3) on them and run some file-based benchmarks (to generate real load).
Good idea. They do have real filesystems on them. I stopped the DomU and mounted them in the Dom0, and ran bonnie++ on them. There was some variation between 47 and 65 M/s, depending on task, but that's in the range and they all completed successfully. That seems like a fairly good test of the iSCSI back end under normal usage.
Do you have errors on the iSCSI target?
No, I checked the error logs and ZFS statuses, and all looks good there. Even when iSCSI locks up under Xen control, they don't show any errors, and come right back when I restart iscsi.
-Bill -- Bill McGonigle, Owner Work: 603.448.4440 BFC Computing, LLC Home: 603.448.1668 http://www.bfccomputing.com/ Cell: 603.252.2606 Twitter, etc.: bill_mcgonigle Page: 603.442.1833 Email, IM, VOIP: [email protected] Blog: http://blog.bfccomputing.com/ VCard: http://bfccomputing.com/vcard/bill.vcf _______________________________________________ rhelv5-list mailing list [email protected] https://www.redhat.com/mailman/listinfo/rhelv5-list
