Unsolved
This post is more than 5 years old
8 Posts
0
1514
June 17th, 2015 10:00
VNX Unified - Filesystems on specific volumes AVM
I have a VNX5500 Unified that we are using primarily for CIFS shares. At one time a Raid group was created with the wrong number of disks (6 vs 8, Raid 6) leaving us with 2 extra disks and a small Raid Group. We are working to move all the file systems that are using that Raid Group off to other locations so we can rebuild it correctly. Does anyone know of a way that we can create a file system in the same 'storage pool for file' and tell it to either use specific volumes or not use specific volumes.
My thought is that if I could do that I could create the destination file systems in the same pool without having to be concerned that it will use the volumes we are trying to evacuate from.
Or is there a way to tell the system to not use those volumes for any new file systems, but allow the systems that are currently there to continue to function?
jason_mills
8 Posts
0
June 17th, 2015 11:00
Can you elaborate on how I would do that? If I could create a dummy file system on that volume specifically I would think I could use the same process to create the destination file system on another volume?
Rainer_EMC
4 Operator
•
8.6K Posts
0
June 17th, 2015 11:00
Not directly
You could try creating dummy fs using MVM on the volumes you don’t want to be used and the create your production fs
Or if a volume is complete unused move it into a user defined pool temporarily
Rainer_EMC
4 Operator
•
8.6K Posts
0
June 17th, 2015 11:00
Basically instead of specifying a pool you specify a meta
See the AVM and MVM manuals for example
I would do it this way of excluding the ones you don’t want so that you still get the normal AVM behavior for striping and auto-extend for your production fs
jason_mills
8 Posts
0
June 17th, 2015 11:00
I attempted to create the dummy fs on the volume that I was trying to fill up but it complained that is was in use.
[nasadmin@VNX5500 ~]$ nas_fs -name dummyfs1 -create d20
Error 2216: d20 : item is currently in use by v111
[nasadmin@VNX5500 ~]$ nas_fs -name dummyfs1 -create v111
Error 2216: v111 : item is currently in use by s639,s1553,s1558,s1562,s1568,s909,s912,s686,s687,s692,s693,s694,s695,s702,s913,s80,s908,s911
jason_mills
8 Posts
0
June 17th, 2015 11:00
From what I can see, since the disk is already involved with AVM and has vols/slices on it I don't have any way to create a file system on it using MVM.
Rainer_EMC
4 Operator
•
8.6K Posts
0
June 17th, 2015 11:00
I would suggest to have a local CS or PS guy who understands look at your config
/nas/tools/whereisfs can tell you whats using what – but it can still be difficult to understand if you don’t know the details of volume management
Rainer_EMC
4 Operator
•
8.6K Posts
0
June 17th, 2015 15:00
Not the complete dvol – but you could create slices on the remaining free space