creates a misaligned partition
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
gnome-disk-utility (Ubuntu) |
Confirmed
|
Undecided
|
Unassigned |
Bug Description
Binary package hint: gnome-disk-utility
I installed a new 750GB disk in the expansion bay of my X201, and then used Maverick's disk-utility to create a GUID Partition Table.
I then made a new 250GB partition at the start of the disk. Next time I opened disk-utility, I saw a warning: "the partition is misaligned by 3072 bytes. This may result in very poor performance. Repartitioning is suggested."
I then deleted the partition, created a new one, and found the exact same problem occurs.
1- If disk-utility is smart enough to know this partition layout will cause poor performance, it shouldn't create it!
2- Does this actually cause poor performance on modern hardware/kernels?
ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: gnome-disk-utility 2.30.1-2
ProcVersionSign
Uname: Linux 2.6.35-28-generic x86_64
Architecture: amd64
Date: Fri Mar 25 09:48:06 2011
EcryptfsInUse: Yes
ExecutablePath: /usr/lib/
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
ProcEnviron:
PATH=(custom, user)
LANG=en_AU.utf8
SHELL=/bin/zsh
SourcePackage: gnome-disk-utility
Changed in gnome-disk-utility (Ubuntu): | |
status: | New → Confirmed |
I guess this may actually be a reflection of parted half-supporting 4kb alignment?
The device reports:
mbp@joy% cat alignment_offset queue/minimum_ io_size queue/max_ segment_ size queue/physical_ block_size queue/optimal_ io_size
0
4096
65536
4096
0