Administrace komentářů

Přeji hezký den,

v rámci testování rychlosti disku jsem narazil na následující udaje, u kterých si nevím rady, jeslti jsou dostatečné a proč ne
Proto prosím o radu:

Server DELL 2950 (2x Xeon - 8 jader, 16GB RAM)

RAID 1 md4  2x disk:

=== START OF INFORMATION SECTION ===
Model Family:     Western Digital Caviar Blue Serial ATA
Device Model:     WDC WD3200AAJS-00B4A0
Serial Number:    WD-WCAT1H024074
LU WWN Device Id: 5 0014ee 1031c145a
Firmware Version: 01.03A01
User Capacity:    320 072 933 376 bytes [320 GB]
Sector Size:      512 bytes logical/physical
Device is:        In smartctl database [for details use: -P show]
ATA Version is:   ATA8-ACS (minor revision not indicated)
SATA Version is:  SATA 2.5, 3.0 Gb/s
Local Time is:    Sun Sep 27 15:19:38 2015 CEST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
 
hdparm -tT /dev/sdb

/dev/sdb:
 Timing cached reads:   12304 MB in  2.00 seconds = 6157.93 MB/sec
 Timing buffered disk reads: 296 MB in  3.01 seconds =  98.33 MB/sec


hdparm -tT  /dev/md4

/dev/md4:
 Timing cached reads:   12612 MB in  2.00 seconds = 6311.99 MB/sec
 Timing buffered disk reads: read(2097152) returned 1052672 bytes
ioping -R /dev/md4

--- /dev/md4 (block device 241.7 GiB) ioping statistics ---
190 requests completed in 3.00 s, 63 iops, 254.0 KiB/s
min/avg/max/mdev = 3.47 ms / 15.8 ms / 48.4 ms / 6.22 ms
ioping -R /dev/sdb

--- /dev/sdb (block device 298.1 GiB) ioping statistics ---
178 requests completed in 3.01 s, 59 iops, 237.0 KiB/s
min/avg/max/mdev = 5.13 ms / 16.9 ms / 52.0 ms / 7.59 ms


 
RAID 1 md1 2x disk
=== START OF INFORMATION SECTION ===
Model Family:     Western Digital Green
Device Model:     WDC WD10EZRX-00L4HB0
Serial Number:    WD-WCC4J0698661
LU WWN Device Id: 5 0014ee 2b3e99f19
Firmware Version: 01.01A01
User Capacity:    1 000 204 886 016 bytes [1,00 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Device is:        In smartctl database [for details use: -P show]
ATA Version is:   ATA8-ACS (minor revision not indicated)
SATA Version is:  SATA 3.0, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Sun Sep 27 15:23:44 2015 CEST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

hdparm -tT /dev/md127

/dev/md127:
 Timing cached reads:   11212 MB in  2.00 seconds = 5611.05 MB/sec
 Timing buffered disk reads: 434 MB in  3.00 seconds = 144.59 MB/sec

hdparm -tT /dev/sda

/dev/sda:
 Timing cached reads:   11310 MB in  2.00 seconds = 5659.81 MB/sec
 Timing buffered disk reads: 440 MB in  3.01 seconds = 146.41 MB/sec

ioping -R /dev/sda

--- /dev/sda (block device 931.5 GiB) ioping statistics ---
163 requests completed in 3.01 s, 54 iops, 217.4 KiB/s
min/avg/max/mdev = 3.47 ms / 18.4 ms / 77.9 ms / 7.81 ms
ioping -R /dev/md127

--- /dev/md127 (block device 875.1 GiB) ioping statistics ---
175 requests completed in 3.01 s, 58 iops, 232.7 KiB/s
min/avg/max/mdev = 3.35 ms / 17.2 ms / 30.9 ms / 5.46 ms


 

Zvláště se mi nezdají hodnoty při iopingu desítky iops se mi zdá dost mál. Nějaké tipy rady či je to normální?

Díky