I have a WD My Passport that has a SES device with it:
[tom@localhost ~]$ lsscsi -g
...
[7:0:0:0] disk WD My Passport 083A 1065 /dev/sdc /dev/sg3
[7:0:0:1] enclosu WD SES Device 1065 - /dev/sg4
which is a Simple Subenclosure, as documented in SES-3 (Rev. 11a) Section 4.3.3.
Currently the kernel spam the following error for it:
scsi 7:0:0:1: Wrong diagnostic page; asked for 1 got 0
scsi 7:0:0:1: Failed to get diagnostic page 0xffffffea
scsi 7:0:0:1: Failed to bind enclosure -19
However, according to the the aforementioned documentation, Simple
Subenclosure is a device that does NOT support any SES diagnostic
page, except the Short Enclosure Status diagnostic page.
And my device is doing pretty much exactly the right thing:
[tom@localhost ~]$ sudo sg_ses /dev/sg4
WD SES Device 1065
Supported diagnostic pages:
Supported Diagnostic Pages [sdp] [0x0]
Short Enclosure Status (SES) [ses] [0x8]
<unknown> [0x80]
<unknown> [0x83]
<unknown> [0x84]
<unknown> [0x85]
[tom@localhost ~]$ sudo sg_ses -p 0x8 -vvv /dev/sg4
open /dev/sg4 with flags=0x802
inquiry cdb: 12 00 00 00 24 00
duration=0 ms
WD SES Device 1065
enclosure services device
Receive diagnostic results cmd for Short Enclosure Status (SES) page
Receive diagnostic results cmd: 1c 01 08 ff fc 00
duration=0 ms
receive diagnostic results: pass-through requested 65532 bytes
(data-in) but got 4 bytes
receive diagnostic results: response
08 00 00 00
Short enclosure status diagnostic page, status=0x0
The content of the Short Enclosure Status page (08 00 00 00) is
correct as documented in SES-3 (Rev. 11a) Section 6.1.11 too.
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