Appendix A Parameter List
A.6 Thin Provisioning Management
ETERNUS Web GUI User’s Guide (Settings)
Copyright 2015 FUJITSU LIMITED
P2X0-1270-13ENZ0
925
•
Encryption by CM
•
Alarm
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.
*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))
Redundant sets
(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.
Description
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.
Input condition/
Display contents
•
On
TPPs that are encrypted by a CM are created.
•
Off
TPPs that are not encrypted by a CM are created.
Description
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.
Input condition/
Display contents
•
Warning threshold
5 - 99
•
Attention threshold
5 - 80
•
When omitting the "Attention" threshold
Clear the checkbox
No. of drives in
the configuration
(per RAID group)
Redundant sets +
HS (*1)
Capacity
efficiency
(*2) (%)
Rebuilding
speed (*3)
(Rate)
Number of
data drives
Selection order when
configuring automatically
"Minimize
number of
using drives"
is selected
"Prioritize
rebuild rate"
is selected
13
(4D+2P)x2+1HS
61.5
2.17
8
1
3
17
(6D+2P)x2+1HS
70.6
2.13
12
2
4
31
(8D+2P)x3+1HS
77.4
3.10
24
3
2
31
(4D+2P)x5+1HS
64.5
5.17
20
Not selected
1
Summary of Contents for Eternus DX200F
Page 2: ...This page is intentionally left blank ...
Page 1082: ......