HP 3PAR available capacity calculation method

View the summary results of the current storage space usage:

Ss8400c cli% showsys-d

-General-

System Name: ss8400c

System Model: HP_3PAR 8440

Serial Number: SGH61xxxxx

System ID: 0x1A130

Number of Nodes: 4

Master Node: 0

Nodes Online: 0,1,2,3

Nodes in Cluster: 0,1,2,3

Cluster LED: n/a

Chunklet Size (MB): 1024

Minimum PW length: 6

-System Capacity (MB)-

Total Capacity: 40620032 3par storage total bare capacity

Allocated Capacity: 7419904 of the bare space currently allocated

Free Capacity: 33200128 all remaining bare capacity

Failed Capacity: 0 bad block capacity

-SystemDescriptors-

Location:

Owner:

Contact:

Comment:

Showpd-p-devtype FC-rpm 10

1. Check the available bare capacity and type of hard drive

Showpd-p-devtype FC looks at the fc type of disk, and the rpm column can distinguish between 10k and 15k.

-Size (MB)-Ports

Id CagePos Type RPM State Total Free A B Capacity (GB)

0 0:0:0 FC 10 degraded 418816 351232-1 Fraser 1 * 450

10: 1:0 FC 10 degraded 418816 353280-1 Fraser 1 * 450

2 0:2:0 FC 10 degraded 418816 353280-1 Fraser 1 * 450

3 0:3:0 FC 10 degraded 418816 355328-1 Fraser 1 * 450

4 0:4:0 FC 10 degraded 418816 354304-1 Fraser 1 * 450

50: 5:0 FC 10 degraded 418816 354304-1 purge 1 * 450

12 1:0:0 FC 10 degraded 418816 352256-1 Fraser 0450

13 1:1:0 FC 10 degraded 418816 354304-1

14 1:2:0 FC 10 degraded 418816 354304-1

15 1:3:0 FC 10 degraded 418816 355328-1 Fraser 015 * 450

16 1:4:0 FC 10 degraded 418816 354304-1

17 1:5:0 FC 10 degraded 418816 355328-1

24 2:0:0 FC 10 degraded 418816 354304-1 purl 2purl 1x450

25 2:1:0 FC 10 degraded 418816 355328-1 purl 2purl 1x450

26 2:2:0 FC 10 degraded 418816 354304-1 purl 2purl 1x450

27 2:3:0 FC 10 degraded 418816 355328-1 purl 2purl 1x450

28 2:4:0 FC 10 degraded 418816 352256-1 purl 2purl 1x450

29 2:5:0 FC 10 degraded 418816 354304-1 purl 2purl 1x450

According to the 3par vv creation mechanism, the space is polled from each hard disk under the cpg, so the minimum of the free column of the same type of hard disk is required.

Then multiply it by the number of hard drives of the same type to get the total available bare capacity.

The following example is 343'18 '10290 (GB) 7000 series 3par unit is gb

Calculate the maximum size of the vv

Need to be based on the properties of cpg

The number after Ssz represents the set size property of the following figure. Ssz is four for three, one for four, and SSZ is five for four, one.

Finally, the available bare capacity is 3433010290.

Multiplied by the data percentage of cpg, the data percentage of ssz is 3 Universe 4, or 75%.

1029075% is the maximum size that can be created for vv.

By the way, the maximum vv size supports 16tb.