On Tue, Aug 9, 2011 at 5:40 PM, Joey McDonald <joey at scare.org> wrote:
> Hi Pavan,
>
> Thanks for your quick reply, comments inline:
>
>
>> 1. Are these baremetal systems or are they Virtual machines ?
>>
>
> Bare metal systems.
>
>
>
>> 2. What is the amount of RAM of each of these systems ?
>>
>
> They all have 4194304 kB of memory.
>
>
>>
>> 3. How many CPUs do they have ?
>>
>
> They each have 8 procs.
>
>
>> 4. Can you also perform the dd on /gluster as opposed to /root to check
>> the backend performance ?
>>
>
> Sure, here is that output:
>
> [root at vm-container-0-0 ~]# dd if=/dev/zero of=/gluster/dd_test.img bs=1M
> count=2000
> 2000+0 records in
> 2000+0 records out
> 2097152000 bytes (2.1 GB) copied, 6.65193 seconds, 315 MB/s
>
>
>
>> 5. What is your disk backend ? Is it direct attached or is it an array ?
>>
>
> Direct attached, /gluster is /dev/sdb1, 1TB SATA drive (as is /dev/sda):
>
> [root at vm-container-0-0 ~]# hdparm -i /dev/sdb
>
> /dev/sdb:
>
> Model=WDC WD1002FBYS-02A6B0 , FwRev=03.00C06, SerialNo=
> WD-WMATV5311442
> Config={ HardSect NotMFM HdSw>15uSec SpinMotCtl Fixed DTR>5Mbs FmtGapReq }
> RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=50
> BuffType=unknown, BuffSize=32767kB, MaxMultSect=16, MultSect=?0?
> CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=268435455
> IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
> PIO modes: pio0 pio3 pio4
> DMA modes: mdma0 mdma1 mdma2
> UDMA modes: udma0 udma1 udma2
> AdvancedPM=no WriteCache=enabled
> Drive conforms to: Unspecified: ATA/ATAPI-1 ATA/ATAPI-2 ATA/ATAPI-3
> ATA/ATAPI-4 ATA/ATAPI-5 ATA/ATAPI-6 ATA/ATAPI-7
>
> * signifies the current active mode
>
>
>
>> 6. What is the backend filesystem ?
>>
>
> ext3
>
>
>> 7. Can you run a simple scp of about 10M between any two of these systems
>> and report the speed ?
>>
>
> Sure, output:
>
> [root at vm-container-0-1 ~]# scp vm-container-0-0:/gluster/dd_test.img .
> Warning: Permanently added 'vm-container-0-0' (RSA) to the list of known
> hosts.
> root at vm-container-0-0's password:
> dd_test.img
> 100% 2000MB
> 39.2MB/s 00:51
>
>
> --joey
>
>
>
>
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