Lenovo ThinkAgile CP 4000 Series, Upgrade Manual

Page: 41 / 68

Increasing the size of the CBS pool
This section covers the steps required to increase the sizes of the CBS pool and of the CBS pool data.
Ensure that the size of the VDO data is properly increased accoring to the Increasing the size of the VDO
section.
Procedure performed by : Customer or field service
To increase the sizes of the CBS pool and the CBS pool data, follow these steps:
Step 1. Get the current size of the CBS pool and CBS pool data:
# # d dm msseettu up p ttaab bllee C CB BS S__P PO OO OL L
0 93066911448 thin-pool 253:11 253:8 8192 0 0
# # d dm msseettu up p ttaab bllee C CB BS S__P PO OO OL L__d daattaa
0 93066911448 linear 253:10 67608872
Step 2. Get the size of the VDO data:
b bllo occkkd deevv ----g geettssiizzee //d deevv//m maap pp peerr//vvd do o
186287915008
The size of the ThinkAgile CP superblock is
67,608,872
.
Step 3. Calculate the new size for the CBS pool and CBS pool data according to the following formula:
new CBS pool and CBS pool data size
= (
size of VDO data
)
—
(
size of ThinkAgile CP superblock
)
In our example, this becomes:
new CBS pool and CBS pool data size
= 186,287,915,008
—
67,608,872 = 186,220,306,136
Step 4. Increase the size of the CBS pool data:
Note: All CBS pool input/output halts while the CBS pool data device is suspended until the device
is resumed, so make sure these operations are as fast as possible. You can do this by stringing the
commands together with semicolons and then executing them as one.
# # d dm msseettu up p ssu ussp peen nd d C CB BS S__P PO OO OL L__d daattaa
# # d dm msseettu up p rreello oaad d C CB BS S__P PO OO OL L__d daattaa ----ttaab bllee ''0 0 1 18 86 62 22 20 03 30 06 61 13 36 6 lliin neeaarr //d deevv//m maap pp peerr//vvd do o
6 67 76 60 08 88 87 72 2''
# # d dm msseettu up p rreessu um mee C CB BS S__P PO OO OL L__d daattaa
Chapter 3
.
Storage block capacity upgrade
33