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...ding running OCFS on top of path-management packages such as EMC's Powerpath, and it brought to mind a problem I've been having. I'm currently testing a six-node cluster connected to a Hitachi 9570V SAN storage array, using OCFS 1.0.12. I have six LUNs presented to the hosts using HDLM, Hitachi's eqivalent of Powerpath. Here's the problem: I've been noticing outstandingly bad performance using OCFS. Now then - I've benchmarked the Hitachi using iozone with an ext2 filesystem on top of the HDLM-managed LUNs, and seen performance that I would expect - that is, ar...

Dear All, Can somebody help me on the following issue: When I mount the SCSI device on storage with ext3 filesystem & perform cp in loop, it becomes readonly. The steps to reproduce the issue are: 1)Create a ext3 file system on HDLM device mkfs ?t ext3 /dev/sdn 2)Mount the device Mount /dev/sddlmaa /home/<dir. name> 3)Execute cp ?f command in a loop on mounted device. cp -f /root/install.log /home/<dir name>/<file name> 4)Disconnect the path. (Either by plugpull or by disabling the port) 5...

Where can I find a list of supported multipath drivers for ZFS? Keith McAndrew Senior Systems Engineer Northern California SUN Microsystems - Data Management Group <mailto:Keith.McAndrew at SUN.com> Keith.McAndrew at SUN.com 916 715 8352 Cell CONFIDENTIALITY NOTICE The information contained in this transmission may contain privileged and confidential information of SUN

CRAN (and crantastic) updates this week New packages ------------ * disclapmix (0.1) Maintainer: Mikkel Meyer Andersen Author(s): Mikkel Meyer Andersen and Poul Svante Eriksen License: GPL-2 http://crantastic.org/packages/disclapmix disclapmix makes inference in a mixture of Discrete Laplace distributions using the EM algorithm. * EstSimPDMP (1.1) Maintainer: Unknown Author(s):

How much fun can you have with a simple thing like powerpath? Here''s the story: I have a (remote) system with access to a couple of EMC LUNs. Originally, I set it up with mpxio and created a simple zpool containing the two LUNs. It''s now been reconfigured to use powerpath instead of mpxio. My problem is that I can''t import the pool. I get: pool: ###### id: