Maximum number of 8 loopback devices low for SC
Bug #498174 reported by
Torsten Spindler
This bug affects 2 people
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
eucalyptus (Ubuntu) |
Fix Released
|
High
|
Dustin Kirkland |
Bug Description
The default Ubuntu kernel provides only 8 loopback devices. Setting more is possible with the max_loop=<number> on the kernel boot parameters line in /boot/grub/
Background is that we had a training class this week where with 6 students creating volumes we were running out of volumes quickly. I realise that this might happen in larger clouds with many instances much faster.
Changed in eucalyptus (Ubuntu): | |
importance: | Undecided → Wishlist |
Changed in eucalyptus (Ubuntu): | |
status: | Triaged → Fix Committed |
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I just learned that the number of loop back devices is managed dynamically by the kernel. However, the number of actual loop back devices in /dev/ is set to 8 by default. Creating new ones can be done with
$ sudo mknod b 7 <number> /dev/loop<number>