On 08.04.2009 23:32, Maks Re wrote:
>   
>> Я это понимаю. Поэтому и спрашиваю у общественности у кого сколько?
>>     
> # lspci |grep 3ware
> 02:02.0 RAID bus controller: 3ware Inc 9550SX SATA-RAID
>
> 4 диска. рейд 5
>
> # hdparm -tT /dev/sda
>
> /dev/sda:
>  Timing cached reads:   2326 MB in  2.00 seconds = 1162.77 MB/sec
>  Timing buffered disk reads:  598 MB in  3.01 seconds = 198.81 MB/sec
>
>
>
>   
# tw_cli /c6 show all
/c6 Driver Version = 2.26.02.011
/c6 Model = 9500S-12MI
/c6 Available Memory = 112MB
/c6 Firmware Version = FE9X 2.08.00.009
/c6 Bios Version = BE9X 2.03.01.052
/c6 Boot Loader Version = BL9X 2.02.00.001
/c6 Serial Number = L19103A5130267
/c6 PCB Version = Rev 019
/c6 PCHIP Version = 1.50
/c6 ACHIP Version = 3.20
/c6 Number of Ports = 12
/c6 Number of Drives = 12
/c6 Number of Units = 1
/c6 Total Optimal Units = 1
/c6 Not Optimal Units = 0
/c6 JBOD Export Policy = off
/c6 Disk Spinup Policy = 1
/c6 Spinup Stagger Time Policy (sec) = 2
/c6 Cache on Degrade Policy = Follow Unit Policy

Unit  UnitType  Status         %RCmpl  %V/I/M  Stripe  Size(GB)  Cache 
AVrfy
------------------------------------------------------------------------------
u0    RAID-5    OK             -       -       256K    2682.11   ON     ON

Port   Status           Unit   Size        Blocks        Serial
---------------------------------------------------------------
p0     OK               u0     298.09 GB   625142448     WD-WCAT13729066
p1     OK               u0     298.09 GB   625142448     WD-WCAT13700088
p2     OK               u0     298.09 GB   625142448     WD-WCAT13710015
p3     OK               u0     298.09 GB   625142448     WD-WCAT13909221
p4     OK               u0     298.09 GB   625142448     WD-WCAT13685774
p5     OK               u0     298.09 GB   625142448     WD-WCAT13699606
p6     OK               u0     298.09 GB   625142448     WD-WCAT13685111
p7     OK               u0     298.09 GB   625142448     WD-WCAT13685348
p8     OK               u0     298.09 GB   625142448     WD-WCAT13909283
p9     OK               u0     298.09 GB   625142448     WD-WCAT13730072
p10    OK               -      298.09 GB   625142448     WD-WCAT13700048
p11    OK               -      298.09 GB   625142448     WD-WCAT13685364

# hdparm -tT /dev/sdd

/dev/sdd:
 Timing cached reads:   5116 MB in  2.00 seconds = 2559.79 MB/sec
 Timing buffered disk reads:  244 MB in  3.00 seconds =  81.29 MB/sec


Вот я и спрашиваю, почему скорость всего 81.29 MB/sec?
При этом диск подключенный не через рейд а на прямую в материнку показывает
/dev/sda:
 Timing cached reads:   4914 MB in  2.00 seconds = 2458.82 MB/sec
 Timing buffered disk reads:  326 MB in  3.00 seconds = 108.62 MB/sec


-- 
WBR,
Dubrovskiy Vyacheslav