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iscsi network share + xfs

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Operating Systems Linux SuSE iscsi network share + xfs
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Old 02-04-2011
iscsi network share + xfs
Hello,

we got a MD3000i used as a network share between two servers (say A and B). The problem we are facing is that file/directories created by server A are not visible on server B (and viceversa). It's not a problem with permission (chmod 777 doesn't help).

The MD3000i was at first used ony with server A. We then added server B. All files/directories added "before B" were readable from both A and .

Here are some details:

MD3000i

Read cache: Enabled
Write cache: Enabled
Write cache without batteries: Disabled
Write cache with mirroring: Disabled
Flush write cache after (in seconds): 10.00
Dynamic cache read prefetch: Enabled


XFS filesystem.

On server A we have (from /etc/fstab)

/dev/disk/by-id/scsi-36a4badb000443c1c000003a04bf628a4-part1 /storage xfs noauto,nofail 0 0

Could be a problem with a combination of cache and xfs barriers?

---------- Post updated at 05:40 PM ---------- Previous update was at 02:28 PM ----------

Ok, solved.
filesystem xfs doesn't support clustering.Smilie

We need to use lock-aware fiesystem as OCFS, GFS or something.
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LEARN ABOUT OPENSOLARIS

iscsi

iscsi(7D)							      Devices								 iscsi(7D)

NAME

       iscsi - iSCSI software initiator driver

DESCRIPTION

       The  iscsi driver is a software initiator that transports SCSI commands over TCP/IP as described in RFC 3720. The initiator is administered
       through iscsiadm(1M). The iscsi initiator acts as a host adapter driver that attaches the appropriate target driver (for example sd(7D) for
       disks or st(7D) for tapes) for devices it discovers. See the System Administration Guide for more information.

FILES

       /kernel/drv/iscsi	    32-bit ELF kernel driver.

       /kernel/drv/sparcv9/iscsi    64-bit SPARC ELF kernel driver.

       /kernel/drv/amd64/iscsi	    64-bit AMD64 ELF kernel driver.

       /kernel/drv/iscsi.conf	    Driver configuration file.

       /etc/iscsi/*		    iscsi persistent store.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWiscsir, SUNWiscsiu	   |
       +-----------------------------+-----------------------------+

SEE ALSO

       iscsiadm(1M), attributes(5)

       RFC 3720 Internet Small Computer Systems Interface (iSCSI)

       System Administration Guide: Devices and File Systems, Chapter 15

SunOS 5.11							   12 April 2005							 iscsi(7D)