Creating a hot spare – Avago Technologies 3ware 9650SE-12ML (Channel) User Manual

Page 125

Advertising
background image

Creating a Hot Spare

www.3ware.com

113

Use of the -j option to turn on journaling is recommended for large
partitions.

For example:

mkfs -j /dev/sda1

If the partition is over 2TB, use

parted

to also make the file system:

parted /dev/sda1

(parted) mkfs
Partition number? 1
File system? [ext2]?
writing per-group metadata (begins)...0% to 100% is
displayed)

(parted) quit (when completed)

5

Mount the volume:

mount /dev/sda1 /mnt

To partition, format, and mount under FreeBSD

1

Boot the system and log in as root.

2

Open a terminal window.

3

Partition the unit:

fdisk -BI /dev/da0;

disklabel /dev/da0 | disklabel -B -R -r da0

4

Create or make the file system:

newfs /dev/da0c

5

Mount the volume:

mount /dev/da0c /mnt

You can also use sysinstall to format and partition the unit.

Creating a Hot Spare

You can designate an available drive as a hot spare. If a redundant unit
degrades and a hot spare the size of the degraded disk (or larger) is available,
the hot spare will automatically replace the failed drive in the unit without
user intervention.

It is a good idea to create a hot spare after you create a redundant unit.

Note:

When a hot spare replaces a failed drive, an event notification is generated

and appears in the list of alarms in 3DM. You can also have 3DM send you an email
about this. See “Managing E-mail Event Notification” on page 82.

Advertising