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[SOLVED]extremely slow parity check

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system is brand new.....no data on the system at all.....ran first parity check and i am getting 22 mb/s......i am running it just to see how warm it gets.....

 

running 5.0 B14

 

Syslog.txt

system is brand new.....no data on the system at all.....ran first parity check and i am getting 22 mb/s......i am running it just to see how warm it gets.....

 

running 5.0 B14

parity speed is not dependent on data on the drives, it will b identical filled or empty.

 

You are faster than my PCI based system.  Speed will depend on the rotational speed of the disks AND the bandwidth of the BUS (PCI vs. PCIe, vs. PCI-X) used to read all the disks.

 

Joe L.

  • Author

system is brand new.....no data on the system at all.....ran first parity check and i am getting 22 mb/s......i am running it just to see how warm it gets.....

 

running 5.0 B14

parity speed is not dependent on data on the drives, it will b identical filled or empty.

 

You are faster than my PCI based system.  Speed will depend on the rotational speed of the disks AND the bandwidth of the BUS (PCI vs. PCIe, vs. PCI-X) used to read all the disks.

 

Joe L.

 

my other system does 65-70mb/s on parity checks.....same disks same sas cards...only difference is this new build has a different mb....supermicro x9scl on the new vs. x7spa on the old....

not related but your Gig Nic is connected at 100Mbps. Is this correct?

 

Line 631: Feb  8 12:19:57 Media kernel: e1000e 0000:04:00.0: eth1: Intel® PRO/1000 Network Connection

  Line 908: Feb  8 12:20:18 Media kernel: e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx

Line 908: Feb  8 12:20:18 Media kernel: e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx

Line 909: Feb  8 12:20:18 Media kernel: e1000e 0000:00:19.0: eth0: 10/100 speed: disabling TSO

Line 909: Feb  8 12:20:18 Media kernel: e1000e 0000:00:19.0: eth0: 10/100 speed: disabling TSO

 

Any disk errors from a SMART test?

  • Author

i fixed it.....must of been a bad connection...i dismanteled the cabling and re did it...now parity check is 115 mb/s

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