Overland Storage SnapServer Administrator's Manual page 131

SnapServer/GuardianOS 7.5 Administrator's Guide
• Disabling write cache for an iSCSI disk does not eliminate all potential risk of data loss
due to an unexpected loss of power as each disk drive contains its own internal cache of
8 MB or more.
Disconnect iSCSI Disk Initiators before Shutting Down the Server
Shutting down the server while a client initiator is connected to an iSCSI disk appears to the
client initiator software as a disk failure and may result in data loss or corruption. Make sure
any initiators connected to iSCSI disks are disconnected before shutting down the server.
Ignore Volume is Full Message
When an iSCSI disk is created, the volume or storage pool allocates the specified capacity to
the disk. If all volume or storage pool capacity is allocated to the iSCSI disk and email
notification is enabled, the SnapServer may generate a
message indicates only that the volume capacity is fully allocated to the iSCSI disk and is not
available to other resources. To determine the status of iSCSI disk storage utilization, use the
tools provided on the client machine.
iSCSI Disk Naming Conventions
iSCSI disks are assigned formal IQN names. These appear as the iSCSI device names that the
user chooses (or types) when connecting from a client initiator to the SnapServer target, and
also on the iSCSI disk details page.
The format of IQN names for GuardianOS iSCSI disks on the SnapServer is:
iqn.1997-10.com.
where
iSCSI disk on the target SnapServer. For example:
iqn.1997-10.com.
NOTE: Users with iSCSI disks created in earlier GuardianOS versions will see a shortened IQN name
iqn.[servername].[iscsidiskname]
The format of IQN names for VSS-based iSCSI disks on the SnapServer is:
iqn.1997-10.com.
where
disk on the target SnapServer, and
example:
iqn.1997-10.com.
The format of IQN names for VDS-based iSCSI disks on the SnapServer is:
iqn.1997-10.com.
where
disk on the target SnapServer, and
example:
iqn.1997-10.com.
10400541-001
SnapServer
is the name of the SnapServer, and
[servername]
SnapServer
in the following format:
SnapServer
is the name of the SnapServer,
[servername]
SnapServer
SnapServer
is the name of the SnapServer,
[servername]
SnapServer
©2008-14 Overland Storage, Inc.
Volume is Full
:[servername]:[diskname]
:snap123456:iscsi0
:[servername]:[diskname].[nnn]
[diskname]
is a sequential number starting from 000. For
[nnn]
:snap123456:iscsi0.000
:[servername]:[diskname]-snap[n]
[diskname]
is a sequential number starting from 0. For
[n]
:snap123456:iscsi0-snap0
6 - Other Storage Options
message. This
is the name of the
[diskname]
is the name of the iSCSI
is the name of the iSCSI
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