Technical information
June 2012 Dell EqualLogic Configuration Guide v13.2 19
shows the drive layouts that are enforced based on the number of drives in each array/hot spare
configuration, and the total usable storage available for each model.
Table 9 RAID 6 Drive Layouts and Total Storage Available with Hot Spares (in GB)
Disk Drives Hot Spare No Hot Spare
6
5 Data/Parity + 1 Hot-spare 6 Data/Parity
7
6 Data/Parity + 1 Hot-spare 7 Data/Parity
8
7 Data/Parity + 1 Hot-spare
8 Data/Parity
12
(f)
11 Data/Parity + 1 Hot-spare
12 Data/Parity
14
13 Data/ Parity + 1 Hot-spare
14 Data/Parity
16
15 Data/ Parity + 1 Hot-spare
16 Data/Parity
8 + 8
(c)
15 Data/Parity
(d)
+ 1 Hot-spare
16 Data/Parity
24
(a)(f)
23 Data/Parity + 1 Hot-spare
24 Data/Parity
7 + 17
(e)
23 Data/Parity + 1 Hot-spare
24 Data/Parity
48
(a)
47 Data/Parity + 1 Hot-spare
N/A
(b)
(a)
24 and 48 drive arrays implement multiple RAID 6 sets within a single chassis.
(b) 48 drive arrays cannot implement a no hot-spare RAID policy.
(c) PS60x0 XVS with 8x 100GB SSD and 8x 450GB SAS.
(d) One 450GB hot spare, 2x 450 GB parity and 2x 100GB SSD parity. In the event of a drive failure (SSD or SAS), the
RAID set is reconstructed using the 450GB SAS hot spare.
(e) One 600GB hot spare, 2x 600 GB parity and 2x 400 GB SSD parity. In the event of a drive failure (SSD or SAS), the
RAID set is reconstructed using the 600 GB SAS hot spare.
(f) PS4100/PS6100 models only
Total Usable Storage Available: All Models Prior to PS4100/PS6100
Disk
Drive
Qty /
Size
50
(a)
100
(a)
74 146 250 300 400 450 500 600 750 1000 2000 3000
7
(b)
-
-
-
-
954
-
-
-
-
-
-
-
-
-
8
(c)
-
-
-
-
1193
-
-
-
-
-
-
-
-
-
14
(d)
-
-
709
-
2388
-
3828
-
4789
-
-
-
-
-
16
619
1240
-
1821
3108
3732
4980
5605
6229
7477
9350
12470
-
38350
8 + 8
(e)
-
-
-
-
-
-
-
2726
-
-
-
-
-
-
48
-
-
-
-
-
-
-
-
19394
23275
-
38800
74367
115052
Total Usable Storage Available: PS4100/PS6100
Disk
Drive
Qty /
Size
146 200 300 400 500 600 900 1000 2000 3000
6
-
-
-
-
1429
1715
-
2869
5860
8862
12
1264
1781
2583
3573
4310
5167
7762
8631
17570
26542
24
2660
3771
(f)
5453
7553
(f)
9103
10929
16404
18196
37097
56053
7 + 17
10005
(g)
(a) Solid State Disk
(b) Legacy PS50E
(c) PS4000E and PS6000E only
(d)
Legacy PS70E, PS100E, PS100X, PS200E, PS300E
and PS400E
(e) PS60x0 XVS with 8 x 100GB SSD and 8 x 450GB
SAS
(f) PS6100S (SSD) only
(g) PS6100XS only