Fujitsu ETERNUS DX60 S3 User Manual page 925

Appendix A Parameter List
A.6 Thin Provisioning Management
• Encryption by CM
Description
Input condition/
Display contents
• Alarm
Description
Input condition/
Display contents
Drive configuration for Fast Recovery RAID groups (TPP)
The drive layout in the ETERNUS DX is the same as "RAID6". When using automatic configuration, the drive
configuration that satisfies the specified capacity is determined according to the following order.
No. of drives in
the configuration
(per RAID group)
13
17
31
31
*1: Fast Recovery RAID groups are described as "Redundant sets + HS".
RAID6((No. of data drives (D) + No. of parity drives (P)) x No. of redundant sets + No. of Hot spares (HS))
(Example) "RAID6 ((4D+2P)x2+1HS)" is described as "(4D+2P)x2+1HS".
*2: The ratio of the user capacity to physical drive capacity.
*3: Rate when the rebuilding speed for the basic "RAID6 (D+P)" configuration is "1". The rate varies depending on the
workload of the ETERNUS DX and system environment.
Select the encryption status of TPPs.
When the encryption mode is disabled, "On" cannot be selected. When the drive type is
"Online SED", "Nearline SED", or "SSD SED", "On" cannot be selected.
For the ETERNUS DX60 S3, this item is not displayed.
•
On
TPPs that are encrypted by a CM are created.
•
Off
TPPs that are not encrypted by a CM are created.
Specify the threshold (%) for monitoring the TPP used capacity.
There are two types of threshold: "Warning" and "Attention". Specify the threshold so
that "Warning" is larger than "Attention". The "Attention" threshold can be omitted.
When omitting the "Attention" threshold, clear the checkbox.
•
Warning threshold
5 - 99
•
Attention threshold
5 - 80
•
When omitting the "Attention" threshold
Clear the checkbox
Redundant sets + Capacity
HS (*1) efficiency
(*2) (%)
(4D+2P)x2+1HS 61.5
(6D+2P)x2+1HS 70.6
(8D+2P)x3+1HS 77.4
(4D+2P)x5+1HS 64.5

Redundant sets
ETERNUS Web GUI User's Guide (Settings)
Copyright 2015 FUJITSU LIMITED
Rebuilding Number of
speed (*3) data drives
(Rate)
2.17 8
2.13 12
3.10 24
5.17 20
925
Selection order when
configuring automatically
"Minimize "Prioritize
number of rebuild rate"
using drives" is selected
is selected
1 3
2 4
3 2
Not selected 1
P2X0-1270-13ENZ0