Re: XFS and multiple mounts protection (aka preventing multiple mounts)

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On 10/05/2017 10:12, Carlos Maiolino wrote:

Well, having a planned infra-structure is a way, and using UUIDs for mounting
the filesystems are two good ways to avoid mistakes with multiple mounts. UUIDs
are unique for each filesystem, so even if the device name changes between
boots, you can still be sure to mount the correct filesystem on the correct
system by using their UUIDs


Sure, but this does not protect, for example, from a cloned virtual machine which mount a remote iSCSI path and which is started without knowing that. When the cloned machine tries to mount the remote path, bad things can happen.

The most obvious protection is at the iSCSI level, but only the old IETD SCSI target daemon seem to provide such as feature by the virtue of the "MaxSessions" parameter (I have not tested it, anyway). Another protection at the iSCSI level is granted by SCSI reservation, which works quite well but are somewhat harder to setup.

Thanks.

--
Danti Gionatan
Supporto Tecnico
Assyoma S.r.l. - www.assyoma.it
email: g.danti@xxxxxxxxxx - info@xxxxxxxxxx
GPG public key ID: FF5F32A8
--
To unsubscribe from this list: send the line "unsubscribe linux-xfs" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [XFS Filesystem Development (older mail)]     [Linux Filesystem Development]     [Linux Audio Users]     [Yosemite Trails]     [Linux Kernel]     [Linux RAID]     [Linux SCSI]


  Powered by Linux