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File system nested

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gigiz
Valued Contributor

File system nested

Hi guys,
i have a nested file system.
This scenario:
2 nodes of cluster.
/pippo in the /etc/fstab of 2 nodes
/pippo/connect in the Service Guard package.
I need to know if this nested file system is a problem.
Is this a bad configuration? what kind of problem may have?
5 REPLIES
smatador
Honored Contributor

Re: File system nested

Hi,

For me is not a problem because when the package on SG start, the vg is activated, the fs is mounted on /pippo/connect, when you stop the package you umount /pippo/connect.

The only problem is you can't umount /pippo when the package is started.

Steven E. Protter
Exalted Contributor

Re: File system nested

Shalom,

Nested FS is not an issue.

The mount should actually be done however in the package control script.

SEP
Steven E Protter
Owner of ISN Corporation
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gigiz
Valued Contributor

Re: File system nested

Yes,
but i have a /pippo that is local on all nodes, and cannot put into ServiceGuard Package.
Are there known issues or not ?
Frank de Vries
Respected Contributor

Re: File system nested

To determine if it is an issue,
we need to know the structure of your volumes.

SG relies an the underlying lvm

Thus
Is /pippo part of /vg00 (thus local)
and /pippo/connect of /vg01 (enabled by package)

Then it is not issue.

Look before you leap
Duncan Edmonstone
Honored Contributor
Solution

Re: File system nested

If we define 2 types of filesystem:

localFS

clusterpkgFS

then

/localFS1/clusterpkgFS1 is supported

/localFS1/localFS2/clusterpkgFS1 is supported

/localFS1/clusterpkgFS1/clusterpkgFS2 is supported - but be careful with the ordering in the package and don't set any concurrent mount/umount operations

/clusterpkgFS1/localFS1 is *NOT* supported

Does that help make it clear?

HTH

Duncan



HTH

Duncan