mirrors/scst
1
0
Fork 0
mirror of https://github.com/SCST-project/scst.git synced 2026-08-20 22:26:23 +00:00
Code Issues Packages Projects Releases Wiki Activity

Refined ALUA documentation:

Browse Source 
- Added pointer to information about associating iSCSI targets with network interfaces.
- Added information about configuring ALUA multipath on a Linux initiator.

git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@3457 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This commit is contained in:
Bart Van Assche
2011-05-17 19:28:56 +00:00
parent f82565d129
commit 6b3ad5d0fe
1 changed files with 12 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files
scst/README
+12 -7
View File
@@ -1134,11 +1134,12 @@ SCST device and SCST target. An initiator however queries ALUA settings by
sending an appropriate SCSI command to a specific LUN of an SCST target. Each
such LUN maps uniquely to an SCST device. For hardware SCST target drivers,
e.g. ib_srpt, there is a one-to-one correspondence between SCST target and
SCSI target port. With other SCST targets, e.g. iSCSI-SCST, the only
relationship between SCST targets and SCSI target ports is that all SCST
targets defined on a system are visible via all SCSI target ports. Hence for
target drivers like iSCSI-SCST configuring ALUA in SCST only makes sense in a
setup involving more than one system, e.g. a H.A. setup.
SCSI target port. With other SCST targets, e.g. iSCSI-SCST, by default the
only relationship between SCST targets and SCSI target ports is that all SCST
targets defined on a system are visible via all SCSI target ports. See also
the iSCSI-SCST documentation about the allowed_portal attribute for
information about how to associate iSCSI targets with a single physical
interface.
Notes:
- In a H.A. setup it is the responsibility of the user to synchronize ALUA
@@ -1328,8 +1329,12 @@ Initiator Support
.................
On Linux systems implicit ALUA support is provided by the scsi_dh_alua driver
of the device mapper. Information about how to configure the device mapper and
the scsi_dh_alua driver can be found in the manual of your Linux distribution.
of the device mapper. You will have to modify at least the following in
/etc/multipath.conf:
* path_checker scsi_dh_alua
* prio_callout "/sbin/mpath_prio_alua /dev/%n"
More information about how to configure the device mapper and the scsi_dh_alua
driver can be found in the manual of your Linux distribution.
Windows initiator systems support ALUA from Windows Server 2008 on. For more
information, see also: