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[Linux-cluster] Using ext3 on shared storge (GFS and GFS2 hangs)



Hi al,

I have serious problems to setup shared storge under RHEL5 with GFS and GFS2 filesystems. My first problem is _netdev param: GFS and GFS2 doesn't support this ( i need to use iscsi disks). Second problem: GFS and GFS2 hangs under xen environment (I am using XenExpress as a host domU).

Now my question: which can be pros and cons about using ext3 filesystem under a shared storage for RHEL5 CS??

Many thanks.

P.D: I post gfs crash if somebody is interested (kernel 2.6.18-8.1.1.el5xen)

Apr 30 20:41:44 rivendel kernel: GFS2: fsid=XenRhelCluster:gfsvol01.1: fatal: filesystem consistency error Apr 30 20:41:44 rivendel kernel: GFS2: fsid=XenRhelCluster:gfsvol01.1: inode = 5267 10434360 Apr 30 20:41:44 rivendel kernel: GFS2: fsid=XenRhelCluster:gfsvol01.1: function = gfs2_drevalidate, file = fs/gfs2/ops_dentry.c, line = 80 Apr 30 20:41:44 rivendel kernel: GFS2: fsid=XenRhelCluster:gfsvol01.1: about to withdraw this file system Apr 30 20:41:44 rivendel kernel: GFS2: fsid=XenRhelCluster:gfsvol01.1: telling LM to withdraw Apr 30 20:41:45 rivendel dlm_controld[1229]: open "/sys/kernel/dlm/gfsvol01/event_done" error -1 2
Apr 30 20:41:45 rivendel kernel: GFS2: fsid=XenRhelCluster:gfsvol01.1: withdrawn
Apr 30 20:41:45 rivendel kernel:  [<ee28458c>] gfs2_lm_withdraw+0x73/0x7f [gfs2]
Apr 30 20:41:45 rivendel kernel:  [<ee29533a>] gfs2_consist_inode_i+0x42/0x47 [gfs2]
Apr 30 20:41:45 rivendel kernel:  [<ee289c60>] gfs2_drevalidate+0x12b/0x1db [gfs2]
Apr 30 20:41:45 rivendel kernel:  [<ee289bb4>] gfs2_drevalidate+0x7f/0x1db [gfs2]
Apr 30 20:41:45 rivendel kernel:  [<c046d956>] do_lookup+0x111/0x157
Apr 30 20:41:45 rivendel kernel:  [<c046f674>] __link_path_walk+0x87a/0xd33
Apr 30 20:41:45 rivendel kernel:  [<c0451f01>] __handle_mm_fault+0x616/0x1070
Apr 30 20:41:45 rivendel kernel:  [<c046fb76>] link_path_walk+0x49/0xbd
Apr 30 20:41:45 rivendel kernel:  [<c05f63b8>] do_page_fault+0x6e8/0xbeb
Apr 30 20:41:45 rivendel kernel:  [<c05f6431>] do_page_fault+0x761/0xbeb
Apr 30 20:41:45 rivendel kernel:  [<c046ad3e>] open_exec+0x92/0x9a
Apr 30 20:41:45 rivendel kernel:  [<c05f4f8a>] _write_lock_irq+0x8/0x1a
Apr 30 20:41:45 rivendel kernel:  [<c046ff43>] do_path_lookup+0x20e/0x25f
Apr 30 20:41:45 rivendel kernel:  [<c0470688>] __user_walk_fd+0x29/0x3a
Apr 30 20:41:45 rivendel kernel:  [<c046a290>] vfs_stat_fd+0x15/0x3c
Apr 30 20:41:45 rivendel kernel:  [<c05f63b8>] do_page_fault+0x6e8/0xbeb
Apr 30 20:41:45 rivendel kernel:  [<c05f6431>] do_page_fault+0x761/0xbeb
Apr 30 20:41:45 rivendel kernel:  [<c046ad3e>] open_exec+0x92/0x9a
Apr 30 20:41:45 rivendel kernel:  [<c05f4f8a>] _write_lock_irq+0x8/0x1a
Apr 30 20:41:45 rivendel kernel:  [<c046a344>] sys_stat64+0xf/0x23
Apr 30 20:41:45 rivendel kernel:  [<c04d79a1>] copy_to_user+0x31/0x48
Apr 30 20:41:45 rivendel kernel:  [<c045e2ee>] kfree+0xe/0x77
Apr 30 20:41:45 rivendel kernel:  [<c046c2de>] do_execve+0x1ec/0x1f5
Apr 30 20:41:45 rivendel kernel:  [<c05f5cd0>] do_page_fault+0x0/0xbeb
Apr 30 20:41:45 rivendel kernel:  [<c0404cff>] syscall_call+0x7/0xb
Apr 30 20:41:45 rivendel kernel:  =======================


--
CL Martinez
carlopmart {at} gmail {d0t} com


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