Technical information
24 EqualLogic Configuration Guide | Version 15.2 | August 2014
Table 6 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 reported usable storage when using hot spares: All models prior to PS4100/PS6100
Drive Qty
50
(a)
100
(a)
74
146
250
300
400
450
500
600
750
1000
2000
3000
7
(b)
-
-
-
-
888
-
-
-
-
-
-
-
-
-
8
(c)
-
-
-
-
1111
-
-
-
-
-
-
-
-
-
14
(d)
-
-
660
-
2224
-
3566
-
4460
-
6695
-
-
-
16
577
1155
-
1696
2895
3475
4638
5220
5800
6964
8708
11613
23633
35717
8 + 8
(e)
-
-
-
-
-
-
-
2539
-
-
-
-
-
-
48
-
-
-
-
-
-
-
-
18062
21677
-
36136
69260
107151
Total reported usable storage when using hot spares: PS41x0/PS61x0
Drive Qty
146
200
(f)
300
400
(f)
500
600
900
1000
2000
3000
6
-
-
-
-
1331
1597
-
2672
5457
8253
12
1177
1658
2406
3328
(f)
4014
4812
7229
8038
16363
24719
14
1434
-
2938
-
4906
5890,
4286
(h)
8841
9824
-
-
24
2478
3512
5084
7034
(f)
8478
10178
15278
16947
34550
52202
7 + 17
-
-
-
-
-
9318
(g)
-
-
-
-
48
-
-
-
-
-
-
-
-
-
-
(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 8x100GB SSD and 8x450GB SAS
(f) PS6100S (SSD) only
(g) PS6100XS only
(h) M4110XS only