I have build a media Server with following specifications,
Gigabyte GA-H55-UD3h motherboard
Processor i5 680
Dell Perc 6i Raid Card
Chenbro Expander
20 * 2Tb Western Digital Caviar Green in Raid 6 configuration
I have set Intellipark to 300secs as discussed on some forums , After installing Server 2008 R2 I transferred 3.4Tb data on the raid setup and it took 3 days . (The maximum speed reached is 30Mbps).I have set the cache block size to 512mb . I believe the speed if extremely slow , I made sure the raid card was installed in the x16 pcie slot , I might be missing something , how can I increase the performance of this media server or is it bottle neck due to hardware itself.
Syncing was completed ( Raid6 was configured , Initialized & build , I installed 2008 R2 after )
I let the computer run for 2days (free run) and now i am trying to test it ,
I have done following tests.
Transferred 3.4Tb files over the network ( I know N.W traffic and BW will cause issues )
Transfered 240 gb from external drive ( USB BW bottle neck )
Transfered 500 Gb files locally between ( 2Tb Raid 1 OS dirve to Raid 6 Storage drive )
All three tests indicated Write speed way higher ( 315Mb/s in local transfers) and slowly degraded to only 30-35Mb/sec.
This shows the limiting factor is somewhere in the hardware setup itself( assumption)
Secondly The maximum Write speed for Caviar Green is 84Mbps ( I should atleast get 70mbps).
I chose GPT for Storage drive due to OS limitations and 16Kb allocation size, The stripe Cache is 512Kb.
Maybe Striping is making it as slow ... dont know!!
Gigabyte GA-H55-UD3h motherboard
Processor i5 680
Dell Perc 6i Raid Card
Chenbro Expander
20 * 2Tb Western Digital Caviar Green in Raid 6 configuration
I have set Intellipark to 300secs as discussed on some forums , After installing Server 2008 R2 I transferred 3.4Tb data on the raid setup and it took 3 days . (The maximum speed reached is 30Mbps).I have set the cache block size to 512mb . I believe the speed if extremely slow , I made sure the raid card was installed in the x16 pcie slot , I might be missing something , how can I increase the performance of this media server or is it bottle neck due to hardware itself.
Syncing was completed ( Raid6 was configured , Initialized & build , I installed 2008 R2 after )
I let the computer run for 2days (free run) and now i am trying to test it ,
I have done following tests.
Transferred 3.4Tb files over the network ( I know N.W traffic and BW will cause issues )
Transfered 240 gb from external drive ( USB BW bottle neck )
Transfered 500 Gb files locally between ( 2Tb Raid 1 OS dirve to Raid 6 Storage drive )
All three tests indicated Write speed way higher ( 315Mb/s in local transfers) and slowly degraded to only 30-35Mb/sec.
This shows the limiting factor is somewhere in the hardware setup itself( assumption)
Secondly The maximum Write speed for Caviar Green is 84Mbps ( I should atleast get 70mbps).
I chose GPT for Storage drive due to OS limitations and 16Kb allocation size, The stripe Cache is 512Kb.
Maybe Striping is making it as slow ... dont know!!