Dell PowerVault MD3000i Manual de afinação - Página 15
Procurar online ou descarregar pdf Manual de afinação para Armazenamento Dell PowerVault MD3000i. Dell PowerVault MD3000i 32 páginas. Configuration for vmware esx server software
Também para Dell PowerVault MD3000i: Nota de apoio (22 páginas), Upgrade Manual (28 páginas), Manual do utilizador (46 páginas), Manual de substituição (4 páginas), Manual de configuração (10 páginas)
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Dell™ PowerVault MD3000 and MD3000i Array Tuning Best Practices
Figure 2: First Generation Firmware - RAID Level. File: stateCaptureData.txt
Virtual Disk Unit 0 Configuration
Volume Type:
User Label:
Block Size:
Large IO:
Segment Size:
Stripe Size:
...
IO Statistics:
requests
blocks
avg blocks
IO pct.
reads
writes
write
algorithms
Figure 3: Second Generation Firmware - RAID Level. File: stateCaptureData.txt
Volume 0 Attributes:
Volume Type:
User Label:
...
BlockSize:
LargeIoSize:
...
Perf. Stats:
4.7.3 I/O Distribution
I/O can be characterized by its distribution and pattern. The two primary factors
in determining the I/O distribution of an application are the randomness of I/O
and the direction of I/O. The randomness of I/O indicates how sequential or
random the data access is, as well as the patterning of this data access. The
direction of the I/O can be simply related to the read and write percentages of
I/O, that is, the direction I/O is taking from the storage device. I/O pattern refers
December 2008 – Revision A01
13+1 RAID 5
MyRAID5_1
512 bytes
4096 blocks
256 blocks
3328 blocks
small
small
reads
writes
2028332119
147699066
3091968111 2518067526
4
93.21%
6.78%
IOs
stripes
2028332119 2034477363
147699066
148449472
Full
Partial
1105611
12598366
RAIDVolume
MyRAID10_One
512 bytes
4096 blocks
Requests
Reads
67456452 5943724625
Writes
27283249 1144902648
Large Reads
Large Writes
Total
94739701 7088627273
large
reads
writes
0
0
17
0
0.00%
/IO
clusters
1.00 2107869128
1.00
157404718
RMW
No Parity
32120072
Blocks
Avg. Blks
0
0
0
0
large
total
0 2176031185 1289775370
0 1315068341 4019884678
0
0
0.00%
0.00%
/IO
1.03
1.06
RMW2
0
0
IO Percent
88
71.20%
41
28.80%
0
0.00%
0
0.00%
74
100.00%
cache
hits
3
59.27%
FSWT
0
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