Scott at 16:37, 7 December 2011

2011-12-07T16:37:56Z

← Older revision		Revision as of 16:37, 7 December 2011
Line 14:		Line 14:
	(parted) quit		(parted) quit
	</pre>		</pre>
			If mkpart complains about being improperly aligned, use "1 -1" instead of "0 -1".
	* Format the partition(s):		* Format the partition(s):
	<pre>		<pre>

Scott at 16:41, 21 March 2011

2011-03-21T16:41:25Z

← Older revision		Revision as of 16:41, 21 March 2011
Line 17:		Line 17:
	* Format the partition(s):		* Format the partition(s):
	<pre>		<pre>
	~~mke2fs -j~~ /dev/sdb1 (for ext3)		mkfs.ext3 /dev/sdb1 (for ext3)
			mkfs.ext4 /dev/sdb1 (for ext4)
	mkreiserfs /dev/hdb1 (for Reiser)		mkreiserfs /dev/hdb1 (for Reiser)
	mkfs.xfs /dev/sdb1 (for XFS)		mkfs.xfs /dev/sdb1 (for XFS)

Scott at 21:39, 2 February 2011

2011-02-02T21:39:40Z

New page

* Physically install the disk.
* Find the device id (e.g. <code>/dev/hdb</code> or <code>/dev/sdb</code>). Hardware browser or <code>fdisk -l</code> can help with this.
* Option 1: Create the partition table with <code>fdisk</code> (up to 2 TB):
<pre>
fdisk /dev/sdb
</pre>
("p" = print table, "n" = new partition, "w" = write table)
* Option 2: use parted (for big arrays):
<pre>
parted /dev/sdb
(parted) mklabel gpt
(parted) print (showed size of disk to be 10.5TB)
(parted) mkpart primary xfs 0 -1 (use the whole disk)
(parted) quit
</pre>

* Format the partition(s):
<pre>
mke2fs -j /dev/sdb1 (for ext3)
mkreiserfs /dev/hdb1 (for Reiser)
mkfs.xfs /dev/sdb1 (for XFS)
</pre>

Note: For an XFS filesystem on a hardware RAID5 array with 15 disks and 256K stripe size, use this command:
<pre>
mkfs.xfs -f -L export -d su=256k,sw=14 -l su=256k /dev/sdb1
</pre>
This tells mkfs to label the filesystem "export", to use the native stripe size for the filesystem and the log, and that the stripe width is N-1=14 for a 15-disk array.

* Create the mount point:
<pre>
mkdir /u1
</pre>

* Add an entry to /etc/fstab. Something like
<pre>
/dev/sdb1 /u1 ext3 defaults 0 2
</pre>
(0 for no dump, 2 for second priority in fsck). Instead of defaults, use noatime,nodiratime for a big array.

* Mount the partition:
<pre>
mount /u1
</pre>

* To mount an existing disk (don't forget the partition number):
<pre>
mount -t reiserfs /dev/hdb1 /data
</pre>

== Disk Labels ==
If device letters aren't always consistent, it may be useful to create disk labels and assign them in the fstab. To label an ext3 partition:
<pre>
e2label /dev/sdb1 my_label
</pre>

To label an xfs partition:
<pre>
xfs_admin -L my_label /dev/sdb1
</pre>

To read an existing xfs label:
<pre>
xfs_admin -l /dev/sdb1
</pre>

To refer to this in /etc/fstab:
<pre>
LABEL=my_label /u1 (etc.)
</pre>

How to add a new disk drive - Revision history

Scott at 16:37, 7 December 2011

Scott at 16:41, 21 March 2011

Scott at 21:39, 2 February 2011