Stargate & vDisks

Extent Store / vDisks (medusa_printer)

Find which vDisk an extent group belongs to

medusa_printer -egroup_id=<EXTENTGROUPID> -lookup=egid

Get all extent groups for a given vDisk

medusa_printer --scan --lookup=egid --vdisk_id=<VDISK_ID> --print_values_for_scan | less

Count oplog episodes for a vDisk

medusa_printer -lookup oplog -vdisk_id <VDISK_ID> | grep episode | wc -l

Stargate

Stargate version

stargate --version

Where extent data lives on a CVM

/home/nutanix/data/stargate-storage/disks/

iostat-like per-vdisk / per-disk stats (stargate_stats.py, ships with AOS / KB-2629)

stargate_stats.py -t vdisk -n 1 | (head -n 1 && tail -n +2 | sort -n -rk 10 | head)
stargate_stats.py -t disk -x 5