HP StorageWorks P2000 HP StorageWorks P2000 G3 MSA System SMU Reference Guide - Page 32

About size representations, Related topics, RAID level, Expansion capability, Maximum disks, Base 2 - mib

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Table 6 Vdisk expansion by RAID level RAID level Expansion capability Maximum disks NRAID Cannot expand. 1 0, 3, 5, 6 You can add 1-4 disks at a time. 16 1 Cannot expand. 2 10 You can add 2 or 4 disks at a time. 16 50 You can add one sub-vdisk at a time. The added sub-vdisk must contain the same 32 number of disks as each of the existing sub-vdisks. About size representations In SMU panels, parameters such as names of users and volumes have a maximum length in bytes. ASCII characters are 1 byte; most Latin (Western European) characters with diacritics are 2 bytes; most Asian characters are 3 bytes. Operating systems usually show volume size in base 2. Disk drives usually show size in base 10. Memory (RAM and ROM) size is always shown in base 2. In SMU, the base for entry and display of storage-space sizes can be set per user or per session. When entering storage-space sizes only, either base-2 or base-10 units can be specified. Table 7 Size representations in base 2 and base 10 Base 2 Base 10 Unit Size in bytes Unit Size in bytes KiB (kibibyte) 1,024 MiB (mebibyte) 1,0242 GiB (gibibyte) 1,0243 TiB (tebibyte) 1,0244 PiB (pebibyte) 1,0245 EiB (exbibyte) 1,0246 KB (kilobyte) 1,000 MB (megabyte) 1,0002 GB (gigabyte) 1,0003 TB (terabyte) 1,0004 PB (petaabyte) 1,0005 EB (exaabyte) 1,0006 The locale setting determines the character used for the decimal (radix) point, as shown below. Table 8 Decimal (radix) point character by locale Language Character Examples English, Chinese, Japanese, Korean Period (.) 146.81 GB 3.0 Gb/s Dutch, French, German, Italian, Spanish Comma (,) 146,81 GB 3,0 Gb/s Related topics • About user accounts on page 20 32 Getting started

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32
Getting started
About size representations
In SMU panels, parameters such as names of users and volumes have a maximum length in bytes. ASCII
characters are 1 byte; most Latin (Western European) characters with diacritics are 2 bytes; most Asian
characters are 3 bytes.
Operating systems usually show volume size in base 2. Disk drives usually show size in base 10. Memory
(RAM and ROM) size is always shown in base 2. In SMU, the base for entry and display of storage-space
sizes can be set per user or per session. When entering storage-space sizes only, either base-2 or base-10
units can be specified.
The locale setting determines the character used for the decimal (radix) point, as shown below.
Related topics
•
About user accounts
on page 20
Table 6
Vdisk expansion by RAID level
RAID level
Expansion capability
Maximum disks
NRAID
Cannot expand.
1
0, 3, 5, 6
You can add 1–4 disks at a time.
16
1
Cannot expand.
2
10
You can add 2 or 4 disks at a time.
16
50
You can add one sub-vdisk at a time. The added sub-vdisk must contain the same
number of disks as each of the existing sub-vdisks.
32
Table 7
Size representations in base 2 and base 10
Base 2
Base 10
Unit
Size in bytes
Unit
Size in bytes
KiB (kibibyte)
1,024
KB (kilobyte)
1,000
MiB (mebibyte)
1,024
2
MB (megabyte)
1,000
2
GiB (gibibyte)
1,024
3
GB (gigabyte)
1,000
3
TiB (tebibyte)
1,024
4
TB (terabyte)
1,000
4
PiB (pebibyte)
1,024
5
PB (petaabyte)
1,000
5
EiB (exbibyte)
1,024
6
EB (exaabyte)
1,000
6
Table 8
Decimal (radix) point character by locale
Language
Character
Examples
English, Chinese, Japanese, Korean
Period (.)
146.81 GB
3.0 Gb/s
Dutch, French, German, Italian, Spanish
Comma (,)
146,81 GB
3,0 Gb/s