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 NETWORK ATTACHED STORAGE (NAS), old thread closed. please open a new one

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calvin
post Apr 22 2011, 10:31 AM

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QUOTE(raist86 @ Apr 20 2011, 09:36 PM)
The kb mouse and drive are included in package by HP. Can't remove them to reduce price.

Anyway, got my unit today with 4 2tb samsung hdd... set up with freeNAS running RAID 5. Funny thing is... file transfer from my pc to the NAS maxes out at around 60MB/s... is that normal?

File transfer between one folder and another in the NAS maxes out at 17MB/s.. am i doing something wrong here? Using SMB protocol. Wanna try out iSCSI later to see if anything changes..

Btw, in the RAID 5 management section it still says my HomeServer Raid 5 array is under REBUILDING status... a peek in the information section shows that all 4 disks are around 32% synchronized and rising.. anyone willing to explain what this is? Will the speed improve once it's 100% synchronized?

Added on April 21, 2011, 11:11 amTransfer speed now drops to 13MB/s for file transfer from pc to NAS... getting worse..
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SoftRaid on FreeNAS is very taxing on the CPU.. how much RAM have u installed on the NAS ? try using ZFS and configure a stripe + raidz0 configuration..
calvin
post Apr 22 2011, 10:41 PM

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My configuration goes like this :-

6x 1TB WD Black configured in 3 disk pairs to form a ZFS RAID 50 .. to benchmark the I/O performance I ran the command below which writes a 10GB test file onto the array ..

CODE
m2-san:/mnt/ZFS-RAIDZ-0# [B]dd if=/dev/zero of=testfile bs=1024k count=10000[/B]
10000+0 records in
10000+0 records out
10485760000 bytes transferred in 53.665486 secs (195391131 bytes/sec)


the transfer speed of 195391131 bytes/sec translates into 186MB/s or 1.4Gbits/s
calvin
post Apr 23 2011, 10:26 AM

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QUOTE(raist86 @ Apr 23 2011, 12:26 AM)
speed is also related to the host drive to NAS drive rite?

ie, my desktop using 1 single 1TB F3 drive.. The transfer to NAS is also limited to the amount of data it can read from the 1TB drive..

My normal partition to partition transfer for the 1TB F3 is around 50MB/s.. so i guess the limitation is at my desktop harddisk side.
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u should try a disk to disk transfer test instead of a partition to partition as that is taxing on the same HDD.. the F3's should achieve more than 50MB/s as I also use them on my desktop
calvin
post Jan 29 2013, 02:47 AM

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QUOTE(moiskyrie @ Jan 28 2013, 11:32 PM)
do i need client license if using window server?
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you can never escape licensing with windows brows.gif
calvin
post Jul 29 2013, 12:20 AM

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maybe slightly off topic here .. does it matter to have pure sine wave compared to digital stepped sine wave ? unsure.gif
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