Netapp Volumes (7-Mode)

Root Volume: /vol/vol0

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--> this is were DataONTAP is installed and booted

--> minimum size depends on hardware model (consult hwu)

--> fractional reserve must be 100%

--> can be traditional or FlexVol

--> default RAID type is RAID-DP (starting from Data ONTAP 7.3)

--> you can change RAID type by: vol options vol0 raidtype raid4

--> you can designate another root volume: vol options root

Commands

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Displaying

# quick view of size and snapshots df [-g|-h] # displays block size vol status -b # detailed breakdown of space consumed inside a volume vol status -S # amount of space a volume is using within the aggregate (footprint) vol status -F # displays language used on each volumes vol status -l

Creating

# basic vol create [k|m|g|t]   -> if -l is not specified, language will be same as the root volume's language # thick provisioned (w/ space reservation, enabled by default) vol create [k|m|g|t] vol create myvolume myaggregate 1g ** you can also add "-s volume" option # thin provisioned (w/o space reservation) vol create -s none [k|m|g|t] vol create -s none myvolume myaggregate 1g # w/ language is specified --> not sure if this is required in creating ESX LUNS??? vol create -l en_US [k|m|g|t] vol create devsql13_vol -l en_US aggr2 4t TIPS: - it is better to specify values in lower units to increase percentage of getting the desired size: e.g use 15360 GB instead of 15 TB

Modifying

# turns off snap reserve snap reserve 0 # disables snapshots (any of the 2 commands is applicable) vol options nosnap on vol options nosnap 1 # renames a volume (non-disruptive) vol rename

Deleting

# do steps in order filer> vol offline /vol/ filer> vol destroy /vol/ NOTES:   - deleting large volumes will not reclaim aggregate space rightaway     it will take some time to reclaim all space   - As an example, a 34 TB can be reclaimed in 24 hours

Resizing

# increase vol size +[k|m|g|t] ## reduce vol size -[k|m|g|t]

Tutorials

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Actual commands on Volume Creation

vol create data_share_vol -l en_US -s volume aggr2 30720g vol options data_share_vol nosnap 1 snap reserve data_share_vol 0

Netapp share creation

1. Locate aggregate with enough space for new share(s) aggr show_space -g df -g -A 2. Create volumes - create volume, turn off automatic snapshots    & remove snapshot reserve space vol create -l en_US -s volume g vol options nosnap 1 snap reserve 0 note: is usually images[0-9][0-9] & is 250. As of this       writing filer01 has 2 available: aggr0 & aggr1 2. Create QTrees - create QTree, set security mode to NTFS and    enable "opportunistic locks" qtree create /vol// qtree security /vol// ntfs qtree oplocks /vol// enable note: is usually the same as 3. Create CIFS shares cifs shares -add /vol// note: is usually "$"

Troubleshooting

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running out of inodes?

Related message: Fri Nov 20 14:52:54 EST [filer01:wafl.vol.outOfInodes:notice]: file system on Volume data_share_vol is out of inodes Solution: 1. Check the current inode value of the volume maxfiles data_share_vol df -i data_share_vol 2. Increase the max inodes maxfiles data_share_vol 35000000   -> 35000000 is a value greater than the current max inodes 3. Verify maxfiles data_share_vol df -i data_share_vol

creare_ucode config error

Log message: Fri Apr 15 14:25:26 GMT [filer02:cmds.sysconf.logErr:error]: sysconfig: Unless directed by NetApp Global Services volumes vol0, backups_vol, backups2_vol, and vdi_vol should have the volume option create_ucode set to On. .  Fri Apr 15 14:25:26 GMT [filer02:callhome.sys.config:error]: Call home for SYSTEM CONFIGURATION WARNING Solution: For each volume, run the following command: filer> vol options [volname] create_ucode on Root cause: Clustered filers in a NetApp Storage Area Network (SAN) environment require the following options to be enabled to guarantee that failover and giveback occur quickly enough to not interfere with host requests to the LUNs. These options are automatically enabled when FCP/iSCSI service is turned on:   •        volume option create_ucode to on   •        coredump.timeout.enable to on   •        coredump.timout.seconds set to 60 or less