GPF - how do you map two different devices names to the same nsd device name from two different nodes
- From: sudha.k.iyer@xxxxxxxxx
- Date: 25 Apr 2007 07:27:33 -0700
Write now I am trying to setup GPFS w/o any underlying clustering s/w
that is just a GPFS, 2 node cluster
In which both the nodes are directly attached to a FC disk on the SAN.
I was able to create the filesystem and mount it on one of the nodes
but when I try to mount
It on the other node it fails with the foll error
[root@gem/]mmmount /dev/two_node_gpfs
Thu Apr 26 06:01:31 PAKDT 2007: 6027-1623 mmmount: Mounting file
systems ...
GPFS: 6027-549 Failed to open two_node_gpfs.
The media is not formatted or the format is not correct.
GPFS: 6027-510 Cannot mount /dev/two_node_gpfs on /gpfs_two_node: The
media is n
ot formatted or the format is not correct.
I suspect the problem is with the NSD descriptor file that I am using.
The 2 nodes are gem(172.16.27.25, root, cv_gem) and
bull(172.16.27.174, root, cv_bulll)
[root@gem/]lsdev -C -c disk
hdisk0 Available 1S-08-00-8,0 16 Bit LVD SCSI Disk Drive
hdisk2 Available 1S-08-00-5,0 Other SCSI Disk Drive
hdisk3 Available 1H-08-02 Other FC SCSI Disk Drive
[root@bull/dev]lsdev -C -c disk
hdisk0 Available 04-08-00-5,0 16 Bit LVD SCSI Disk Drive
hdisk1 Available 04-08-00-8,0 16 Bit LVD SCSI Disk Drive
hdisk2 Available 00-08-02 Other FC SCSI Disk Drive
the shared disk is seen as /dev/hdisk3 on gem and /dev/hdisk2 on bull
here is what I did
1. [root@bull/dev]cat /home/sudha/nsd_desc_gpfs_two_node_cluster
hdisk2:::dataAndMetadata:::
2. [root@bull/dev]mmcrnsd -F /home/sudha/
nsd_desc_gpfs_two_node_cluster -v no
mmcrnsd: Processing disk hdisk2
mmcrnsd: 6027-1371 Propagating the cluster configuration data to all
affected nodes. This is an asynchronous process.
3. [root@bull/dev]cat /home/sudha/nsd_desc_gpfs_two_node_cluster
# hdisk2:::dataAndMetadata:::
gpfs7nsd:::dataAndMetadata:-1::
4. [root@bull/dev]mmlsnsd -m
Disk name NSD volume ID Device Node
name Remarks
--------------------------------------------------------------------------------
-------
gpfs7nsd AC101BAE462FE827 /dev/hdisk2
bull.gp.cv.commvault.com directl
y attached
5. [root@gem/]mmlsnsd -m
Disk name NSD volume ID Device Node
name Remarks
--------------------------------------------------------------------------------
-------
gpfs7nsd AC101BAE462FE827 -
gem.gp.cv.commvault.com (not fo
und) directly attached
6. [root@bull/dev]mmcrfs /gpfs_two_node /dev/two_node_gpfs -F /home/
sudha/nsd_desc
_gpfs_two_node_cluster
GPFS: 6027-531 The following disks of two_node_gpfs will be formatted
on node bull:
gpfs7nsd: size 52428800 KB
GPFS: 6027-540 Formatting file system ...
GPFS: 6027-535 Disks up to size 111 GB can be added to storage pool
system.
Creating Inode File
Creating Allocation Maps
Clearing Inode Allocation Map
Clearing Block Allocation Map
GPFS: 6027-572 Completed creation of file system /dev/two_node_gpfs.
mmcrfs: 6027-1371 Propagating the cluster configuration data to all
affected nodes. This is an asynchronous process.
7. [root@bull/dev]mmmount /dev/two_node_gpfs -a
Wed Apr 25 20:20:06 CDT 2007: 6027-1623 mmmount: Mounting file
systems ...
gem.gp.cv.commvault.com: GPFS: 6027-549 Failed to open two_node_gpfs.
gem.gp.cv.commvault.com: The media is not formatted or the format is
not correc
t.
gem.gp.cv.commvault.com: GPFS: 6027-510 Cannot mount /dev/
two_node_gpfs on /gpf
s_two_node: The media is not formatted or the format is not correct.
[root@bull/dev]mount
node mounted mounted over vfs date
options
-------- --------------- --------------- ------ ------------
---------------
/dev/hd4 / jfs2 Apr 23 10:18 rw,log=/
dev/hd8
/dev/hd2 /usr jfs2 Apr 23 10:18 rw,log=/
dev/hd8
/dev/hd9var /var jfs2 Apr 23 10:18 rw,log=/
dev/hd8
/dev/hd3 /tmp jfs2 Apr 23 10:18 rw,log=/
dev/hd8
/dev/fwdump /var/adm/ras/platform jfs2 Apr 23 10:19
rw,log=/dev/
hd8
/dev/hd1 /home jfs2 Apr 23 10:19 rw,log=/
dev/hd8
/proc /proc procfs Apr 23 10:19 rw
/dev/hd10opt /opt jfs2 Apr 23 10:19 rw,log=/
dev/hd8
/dev/lv00 /var/adm/csd jfs Apr 23 10:19 rw,log=/
dev/loglv
00
/dev/two_node_gpfs /gpfs_two_node mmfs Apr 25 20:20
rw,mtime,atime,
dev=two_node_gpfs
8.
[root@gem/]mmmount /dev/two_node_gpfs
Thu Apr 26 07:53:27 PAKDT 2007: 6027-1623 mmmount: Mounting file
systems ...
GPFS: 6027-549 Failed to open two_node_gpfs.
The media is not formatted or the format is not correct.
GPFS: 6027-510 Cannot mount /dev/two_node_gpfs on /gpfs_two_node: The
media is n
ot formatted or the format is not correct.
[root@gem/]
I suspect that this is only because the nsd status is not found.
So my question is how do you map two different devices names to the
same nsd device name from two different nodes
Thanks
Sudha
.
- Follow-Ups:
- Re: GPF - how do you map two different devices names to the same nsd device name from two different nodes
- From: Hajo Ehlers
- Re: GPF - how do you map two different devices names to the same nsd device name from two different nodes
- From: Hajo Ehlers
- Re: GPF - how do you map two different devices names to the same nsd device name from two different nodes
- From: Hajo Ehlers
- Re: GPF - how do you map two different devices names to the same nsd device name from two different nodes
- Prev by Date: Re: reboot needed for SAN?
- Next by Date: Re: problem with creating filesystems
- Previous by thread: Wish list: /etc/security/limits group entry
- Next by thread: Re: GPF - how do you map two different devices names to the same nsd device name from two different nodes
- Index(es):
Relevant Pages
|
