Comment 0 for bug 1693369

Revision history for this message
bugproxy (bugproxy) wrote :

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=9373eba6cfae48911b977d14323032cd5d161aae

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.