|To:||Christoph Hellwig <hch@xxxxxxxxxxxxx>|
|Subject:||Re: Problem with file system on iSCSI FileIO|
|From:||Slawomir Nowakowski <slawomir.nowakowski@xxxxxxxxxx>|
|Date:||Fri, 24 Sep 2010 13:11:25 +0200|
|References:||<4C9B5786.4010205@xxxxxxxxxx> <20100923143221.GA1989@xxxxxxxxxxxxx> <4C9B6B27.5050606@xxxxxxxxxx> <20100924075505.GA24664@xxxxxxxxxxxxx>|
|User-agent:||Mozilla/5.0 (X11; U; Linux i686; en-US; rv:22.214.171.124) Gecko/20100915 Thunderbird/3.0.8|
Yes, it is iSCSI target that is served for another server. The FileIO serves a file as iSCSI target.iSCSI FileIO is using struct file that serves it as block level device via iSCSI technology: http://en.wikipedia.org/wiki/ISCSIThanks, I know ISCSI very well. But what is "iSCSI FileIO" ? The above sounds like it's an iscsi target, is that correct?
So once again. We have created a RAID unit level 6. On the top of the unit there is an LVM architecture, I mean a volume group that contains logical volumes. The logical volume is formatted with XFS and it contains one big file that takes almost all of the space on the LV. There is some free space left in order to be able expand the LV and FS in the future. The LV is mounted and the file is served as iSCSI target. The iSCSI Initiator (MS Initiator from Windows 2k3) connects to iSCSI target. The iSCSI disk is formatted with the NTFS.There are RAID level 6 unit on the Areca RAID controller (1680). On the unit is created a volume group. In the volume group we have several logical volumes. The iSCSI FileIO volume is mounted and the file (lun) is served via SCST target as iSCSI LUN. We have checked RAM with memtest+ and verified RAID unit health and no issues were found.I still can't make any sense of the actual setups. The above seems to be the backend storage. Then there's SCST somewhere in which is in a out of tree kernel module. And then you use XFS somewhere. Please provide a full description of the setup.
But we believe the problem is with the XFS. With unknown reason we are not able to mount the LV and after running xfs_repair the file is missing from the LV. Do you have any ideas how we can try to fix the broken XFS?
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