Saturday, January 12, 2019
Clean up stale iSCSI devices
esxcli storage core claiming unclaim -t device -d t10.IET_____000100170000000000000000000000000000000000000000esxcli storage core claiming unclaim -t vendor -v
For more information:
Wednesday, January 09, 2019
VDBench 4 Corner Performance Tests Configuration
* Four corners testing
messagescan=no
ios_per_jvm=300000
hd=default,vdbench=/home/john/vdb,user=root,shell=ssh,jvms=32
hd=localhost,system=srv31.acme.com
hd=storage1.acme.com,system=srv21.acme.com
hd=storage2.acme.com,system=srv22.acme.com
hd=storage3.acme.com,system=srv23.acme.com
hd=storage4.acme.com,system=srv24.acme.com
hd=storage5.acme.com,system=srv25.acme.com
sd=r100,lun=/dev/sdc,size=10g,openflags=o_direct,threads=128
* Workload Definitions
wd=r10_seqwrite32k,host=(localhost),sd=r10,xfersize=32768,rdpct=0,seekpct=sequential
wd=r10_seqread32k,host=(localhost),sd=r10,xfersize=32768,rdpct=100,seekpct=sequential
wd=r10_randwrite4k,host=(localhost),sd=r10,xfersize=4096,rdpct=0,seekpct=random
wd=r10_randread4k,host=(localhost),sd=r10,xfersize=4096,rdpct=100,seekpct=random
* Runs
*rd=r10_seqread32k,wd=r10_seqread32k,iorate=curve,curve=(95,100),elapsed=10,interval=5
*rd=r10_seqwrite32k,wd=r10_seqwrite32k,iorate=curve,curve=(95,100),elapsed=10,interval=5
*rd=r10_randread4k,wd=r10_randread4k,iorate=curve,curve=(95,100),elapsed=10,interval=5
*rd=r10_randwrite4k,wd=r10_randwrite4k,iorate=curve,curve=(95,100),elapsed=10,interval=5
Sunday, January 06, 2019
LUN Statistics in ONTAP Classic
toaster> lun stats -z
toaster> sysstat -s -i 1
CPU NFS CIFS iSCSI Net kB/s Disk kB/s iSCSI kB/s Cache
in out read write in out age
2% 0 0 0 0 0 0 0 0 0 >60
2% 0 0 0 0 0 0 0 0 0 >60
2% 0 0 4 17 1 0 0 16 0 >60
2% 0 0 0 1 0 0 0 0 0 >60
2% 0 0 0 0 0 0 0 0 0 >60
2% 0 0 0 0 0 0 0 0 0 >60
4% 0 0 1 4 0 0 818 4 0 >60
4% 0 0 0 0 0 12 32 0 0 >60
2% 0 0 0 0 0 0 0 0 0 >60
5% 0 0 7 6 1856 1747 0 0 1788 >60
3% 0 0 14 1901 38 0 0 1826 0 9
2% 0 0 2 9 1 0 0 8 0 9
2% 0 0 0 1 0 0 0 0 0 9
2% 0 0 0 0 0 0 0 0 0 9
2% 0 0 0 0 0 0 0 0 0 9
2% 0 0 0 1 0 0 0 0 0 9
2% 0 0 1 5 0 0 0 4 0 9
5% 0 0 0 0 0 0 1859 0 0 9
4% 0 0 0 0 0 0 2290 0 0 9
--
Summary Statistics ( 19 samples 1 secs/sample)
CPU NFS CIFS iSCSI Net kB/s Disk kB/s iSCSI kB/s Cache
in out read write in out age
Min
2% 0 0 0 0 0 0 0 0 0 9
Avg
2% 0 0 1 102 99 92 263 97 94 >60
Max
5% 0 0 14 1901 1856 1747 2290 1826 1788 >60
toaster> lun stats
/vol/vol0/lun1 (0 hours, 0 minutes, 30 seconds)
Read (kbytes) Write (kbytes) Read Ops Write Ops
1754 1834 7 26
toaster>
Useful esxcli VAAI commands
~ # esxcli storage core device vaai status get
t10.IET_____000100010000000000000000000000000000000000000000
VAAI Plugin Name:
ATS Status: supported
Clone Status: unsupported
Zero Status: supported
Delete Status: unsupported
~ #
~ # esxcli system settings advanced list -o /DataMover/HardwareAcceleratedMove
Path: /DataMover/HardwareAcceleratedMove
Type: integer
Int Value: 1
Default Int Value: 1
Min Value: 0
Max Value: 1
String Value:
Default String Value:
Valid Characters:
Description: Enable hardware accelerated VMFS data movement (requires compliant hardware)
~ #
~ # esxcli system settings advanced list -o /DataMover/HardwareAcceleratedInit
Path: /DataMover/HardwareAcceleratedInit
Type: integer
Int Value: 1
Default Int Value: 1
Min Value: 0
Max Value: 1
String Value:
Default String Value:
Valid Characters:
Description: Enable hardware accelerated VMFS data initialization (requires compliant hardware)
~ #
~ # esxcli system settings advanced list -o /VMFS3/HardwareAcceleratedLocking
Path: /VMFS3/HardwareAcceleratedLocking
Type: integer
Int Value: 1
Default Int Value: 1
Min Value: 0
Max Value: 1
String Value:
Default String Value:
Valid Characters:
Description: Enable hardware accelerated VMFS locking (requires compliant hardware)
~ #
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