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b. The status of each SCSI device that appear in PHYs 0-7 display
c. To view other zone groups on other hosts, log into each host and repeat this entire step.
6.6.5 Disabling Zoning using Linux
Important: Ensure that zoning is disabled only during a maintenance window. Disabling
zoning while multiple hosts are active on the enclosure could result in data corruption if
another host gains access to a set of drives that it should not have access to. All hosts will
have access to all drives after zoning is disabled.
Step 1 : From the host server, identify the sg devices that are associated with the 2U24 Flash Storage
Platform ESMs.
a. Issue the following command:
b. Identify the sg devices from the output. The devices can be identified by the /dev/
Step 2 : Disable zoning on each of the sg devices that are associated with the 2U24 Flash Storage
Platform ESMs.
a. Issue the following command to disable zoning on ESM A using the first sg device:
Element 8 descriptor:
Predicted failure=0, Disabled=0, Swap=0, status: No access
allowed
OK=0, Reserved device=0, Hot spare=0, Cons check=0
In crit array=0, In failed array=0, Rebuild/remap=0, R/R
abort=0
App client bypass A=0, Do not remove=0, Enc bypass A=0, Enc
bypass B=0
Ready to insert=0, RMV=0, Ident=0, Report=0
App client bypass B=0, Fault sensed=0, Fault reqstd=0, Device
off=0
Bypassed A=0, Bypassed B=0, Dev bypassed A=0, Dev bypassed
B=0
...
PHYs display
status:No access allowed
those SCSI devices.
Note: The operating system associates each SEP device as a sg device. The sg
device of the SEP can be used to get status from or control elements within the
enclosure.
sg_scan -i | grep -i enc -B 1
sg<devicenumber>. The devices appear as /dev/sg10 and /dev/sg11 bolded in the
example below.
/dev/sg10: scsi1 channel=0 id=17 lun=0
HGST
2U24_STOR_ENCL
/dev/sg11: scsi1 channel=0 id=43 lun=0
HGST
2U24_STOR_ENCL
status: OK
due to this specific host not having access to
0428 [rmb=0 cmdq=1 pqual=0 pdev=0xd]
0428 [rmb=0 cmdq=1 pqual=0 pdev=0xd]
6. Management
6.6 T10 Zoning
. All other
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