Without this patch, the symlink in sysfs which binds a SAS device to an enclosure slot does not get created. This makes disk hotplug near impossible on large JBOD disk drawers.
You should be able to do:
ls /sys/block/sdb/device/ | grep enclosure
and see something like:
enclosure_device:1
If you cd to this directory, you can then access the SES controls for that slot to flash the LED to assist in locating the disk to replace a failed disk.
Currently with 16.04.1 and 16.04.2, these symlinks are not getting created.
This is a request to add the following upstream commit to both Ubuntu 16.04.1 and 16.04.2:
https:/ /git.kernel. org/pub/ scm/linux/ kernel/ git/torvalds/ linux.git/ commit/ drivers/ scsi/ses. c?id=9373eba6cf ae48911b977d143 23032cd5d161aae
Without this patch, the symlink in sysfs which binds a SAS device to an enclosure slot does not get created. This makes disk hotplug near impossible on large JBOD disk drawers.
You should be able to do:
ls /sys/block/ sdb/device/ | grep enclosure
and see something like:
enclosure_device:1
If you cd to this directory, you can then access the SES controls for that slot to flash the LED to assist in locating the disk to replace a failed disk.
Currently with 16.04.1 and 16.04.2, these symlinks are not getting created.