[gpfsug-discuss] 4.1.1 immutable filesets
Simon Thompson (Research Computing - IT Services)
S.J.Thompson at bham.ac.uk
Fri Aug 7 14:46:04 BST 2015
On 05/08/2015 20:23, "Simon Thompson (Research Computing - IT Services)"
<S.J.Thompson at bham.ac.uk> wrote:
>* if I have an iam compliant fileset, and it contains immutable files or
>directories, can I still unlink and delete the filset?
So just to answer my own questions here. (Actually I tried in
non-compliant mode, rather than full compliance, but I figured this was
the mode I actually need as I might need to reset the immutable time back
earlier to allow me to delete something that shouldn't have gone in).
Yes, I can both unlink and delete an immutable fileset which has immutable
files which are non expired in it.
>* will HSM work with immutable files? I.e. Can I migrate files to tape
>and restore them? The docs mention that extended attributes can be
>updated internally by dmapi, so I guess HSM might work?
And yes, HSM files work. I created a file, made it immutable, backed up,
$ mmlsattr -L BHAM_DATASHARE_10.zip
file name: BHAM_DATASHARE_10.zip
metadata replication: 2 max 2
data replication: 2 max 2
expiration Time: Fri Aug 7 14:45:00 2015
storage pool name: tier2
fileset name: rds-projects-2015-thompssj-01
creation time: Fri Aug 7 14:38:30 2015
Windows attributes: ARCHIVE OFFLINE READONLY
I was then able to recall the file.
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