Yes,
The iSCSI "mount" is really presented to your machine as a block device.
From dmesg
output...
scsi3 : iSCSI Initiator over TCP/IP
scsi 3:0:0:4: Direct-Access NEXENTA COMSTAR 1.0 PQ: 0 ANSI: 5
sd 3:0:0:4: Attached scsi generic sg3 type 0
sd 3:0:0:4: [sdc] Attached SCSI disk
So... df -h
shows:
Filesystem Size Used Avail Use% Mounted on
/dev/sdc1 120G 58G 63G 48% /yum
As such, I can run normal I/O utilities and collect metrics on the /dev/sdc
device.
# iostat -k sdc 2
Device: tps kB_read/s kB_wrtn/s kB_read kB_wrtn
sdc 0.00 0.00 0.00 0 0
avg-cpu: %user %nice %system %iowait %steal %idle
24.47 0.00 1.63 3.26 0.00 70.64