Re: [PATCH 0/6] detect online disk resize

[Jeff Moyer <jmoyer@redhat.com>]

Andrew Patterson <andrew.patterson@hp.com> writes:

> This is version 2 of a patch series I submitted back in May 2008. This
> version now checks for device size changes in the rescan_partitions()
> routine.  Which in turn is called when a device is opened and in the
> BLKRRPART ioctl.
>
> I am resubmitting this patch series as I got little response the
> previous time.  Al Viro has told me offline that he would look at it this
> time.

[...]

> I have tested this patch on SCSI and SmartArray (cciss)
> devices. Device mapper still does not recognize device size changes
> until the device is restarted.
>
> Jeff Moyer and Andy Ryan have done some light testing on the previous
> version of this series.

I re-tested this new patch series using an iSCSI target via the
following steps:

1) Connect to iSCSI storage, creating the /dev/sd* devices.
2) Create a file system on the block device
3) Mount the file system, and leave a shell active on the mount point.
4) resize the iSCSI LUN
5) rescan the iSCSI session
6) resize the file system

This procedure worked fine.

Cheers,

Jeff