Scanning Block Devices; Usage; Example - Red Hat GFS 6.0 Administrator's Manual

Chapter 5. Using the Pool Volume Manager
Flag
-v
Table 5-8.
pool_mp

5.3. Scanning Block Devices

Scanning block devices provides information about the availability and characteristics of the devices.
That information is important for creating a pool configuration file. You can scan block devices by
issuing the
pool_tool
option scans all visible block devices and reports whether they have an Ext2 or Ext3 file system, LVM
version 1 labels, a partition table, a pool label, or an unknown label on them.
Note
The
pool_tool
ceding paragraph.

5.3.1. Usage

pool_tool -s

5.3.2. Example

In this example, the response to the command displays information about one GFS file system, other
file systems that have no labels, and a local file system.
# pool_tool -s
Device
======
/dev/pool/stripe-128K
/dev/sda
/dev/sda1
/dev/sda2
/dev/sda3
/dev/sda4
/dev/sda5
/dev/sda6
/dev/sda7
/dev/sda8
/dev/sdb
/dev/sdb1
/dev/sdb2
/dev/sdb3
.
.
.
/dev/sdd4
/dev/sdd5
/dev/sdd6
/dev/sdd7
Option
Verbose operation.
Command Options
command with the
command does not detect ondisk labels other than those mentioned in the pre-
-s
option. Issuing the
-s
<- GFS filesystem ->
<- partition information ->
<- partition information ->
<- partition information ->
<- partition information ->
command with the
pool_tool
Pool Label
==========
stripe-128K
stripe-128K
stripe-128K
<- unknown ->
<- unknown ->
<- unknown ->
<- unknown ->
<- unknown ->
<- unknown ->
<- unknown ->
.
.
.
<- unknown ->
<- unknown ->
<- unknown ->
25
-s