TS7780 Storage Capacity
Base Frame Cache sizes HDD solution using 3948-XSD expansions (TS7780 Cache Drawer)
The base frame of the TS7780 can support up to 120 HDD drives of 20 TB of capacity inside the 3948-XSD drawers. The total written capacity for each HDD drive is 20 TB that means that the system will scale up to 2,400 TB of raw storage in the base frame. Having a total allocated capacity of 1,572.30 TB (1.57 PB). The raw size storage does not consider losses from rebuild, parity, rebuild areas goals, etc.
The following table provides the approximate for the cache sizes that a base frame could achieve with 20 TB HDD drives, the information below is provided for 11 total enclosure numbers:
Frame Type and String # |
Cache Enclosure Number | Total number of 20 TB HDD Drives per enclosure | Raw capacity | Usable (available) capacity |
---|---|---|---|---|
Base S0 | 1 | 0 | 0 | 0 |
2 | 12 | 240 TB (218.47 TiB) | 157.23 TB (142.99 TiB) | |
3 | 24 | 480 TB (436.55 TiB) | 314.46 TB (285.98 TiB) | |
4 | 36 | 720 TB (654.83 TiB) | 471.69 TB (428.97 TiB) | |
5 | 48 | 960 TB (873.11 TiB) | 628.92 TB (571.96 TiB) | |
6 | 60 | 1200 TB (1091.39 TiB) | 786.15 TB (714.95 TiB) | |
7 | 72 | 1440 TB (1309.67 TiB) | 943.38 TB (857.94 TiB) | |
8 | 84 | 1680 TB (1527.95 TiB) | 1100.61 TB (1000.93 TiB) | |
9 | 96 | 1920 TB (1746.23 TiB) | 1257.84 TB (1143.92 TiB) | |
10 | 108 | 2160 TB (1954.50 TiB) | 1415.07 TB (1286.91 TiB) | |
11 | 120 | 2400 TB (2182.78 TiB) | 1572.30 TB (1429.90 TiB) | |
1st Frame S1 | 1 | 0 | - | - |
2 | 12 | 2640 TB (2401.08 TiB) | 1729.91 TB (1573.35 TiB) | |
3 | 24 | 2880 TB (2619.36 TiB) | 1887.14 TB (1716.35 TiB) | |
4 | 36 | 3120 TB (2837.64 TiB) | 2044.37 TB (1859.35 TiB) | |
5 | 48 | 3360 TB (3055.92 TiB) | 2201.60 TB (2002.36 TiB) | |
6 | 60 | 3600 TB (3274.20 TiB) | 2358.83 TB (2145.36 TiB) | |
7 | 72 | 3840 TB (3494.48 TiB) | 2516.06 TB (2288.36 TiB) | |
8 | 84 | 4080 TB (3710.76 TiB) | 2673.29 TB (2431.36 TiB) | |
9 | 96 | 4320 TB (3929.04 TiB) | 2830.52 TB (2574.36 TiB) | |
10 | 108 | 4560 TB (4147.32 TiB) | 2987.75 TB (2717.36 TiB) | |
11 | 120 | 4800 TB (4365.60 TiB) | 3144.98 TB (2860.36 TiB) | |
1st Frame S2 | 1 | 0 | - | - |
2 | 12 | 5040 TB (4583.88 TiB) | 3302.59 TB (3003.71 TiB) | |
3 | 24 | 5280 TB (4802.16 TiB) | 3459.82 TB (3146.71 TiB) | |
4 | 36 | 5520 TB (5020.44 TiB) | 3617.05 TB (3289.71 TiB) | |
5 | 48 | 5760 TB (5238.72 TiB) | 3774.28 TB (3432.71 TiB) | |
6 | 60 | 6000 TB (5457.00 TiB) | 3931.51 TB (3575.71 TiB) | |
7 | 72 | 6240 TB (5675.28 TiB) | 4088.74 TB (3718.71 TiB) | |
8 | 84 | 6480 TB (5893.56 TiB) | 4245.97 TB (3861.71 TiB) | |
9 | 96 | 6720 TB (6111.84 TiB) | 4403.20 TB (4004.71 TiB) | |
10 | 108 | 6960 TB (6330.12 TiB) | 4560.43 TB (4147.71 TiB) | |
11 | 120 | 7200 TB (6548.40 TiB) | 4717.66 TB (4290.71 TiB) |
Base Frame Cache sizes SSD solution using 3948-XFD expansions (TS7780 Cache Drawer)
The base frame of the TS7780 can support up to 240 SSD drives of 15 TB of capacity inside the 3948-XFD drawers. The total written capacity for each SSD drive is 15 TB that means that the system will scale up to 3,600 TB of raw storage in the base frame. Having a total allocated capacity of 2,609.77 (2.60 PB). The raw size storage does not consider losses from rebuild, parity, rebuild areas goals, etc.
The following table provides the approximate for the cache sizes that a base frame could achieve with 15 TB SSD drives, the information below is provided for 11 total enclosure numbers:
Cache Enclosure Number | Total number of 15 TB SSD Drives per enclosure | Raw capacity | Usable (available) capacity |
---|---|---|---|
1 | 0 | 0 | 0 |
2 | 24 | 360 TB (327.41 TiB) | 260.98 TB (237.35 TiB) |
3 | 48 | 720 TB (654.82 TiB) | 521.95 TB (474.70 TiB) |
4 | 72 | 1080 TB (982.23 TiB) | 782.93 TB (712.05 TiB) |
5 | 96 | 1440 TB (1309.64 TiB) | 1043.91 TB (949.40 TiB) |
6 | 120 | 1800 TB (1637.05 TiB) | 1304.88 TB (1186.75 TiB) |
7 | 144 | 2160 TB (1964.46 TiB) | 1565.86 TB (1424.10 TiB) |
8 | 468 | 2520 TB (2291.87 TiB) | 1826.84 TB (1661.45 TiB) |
9 | 192 | 2880 TB (2619.28 TiB) | 2087.81 TB (1898.80 TiB) |
10 | 216 | 3240 TB (2946.69 TiB) | 2348.79 TB (2136.15 TiB) |
11 | 240 | 3600 TB (3274.10 TiB) | 2609.77 TB (2373.50 TiB) |