So I have this Dell PERC 5i in my file server for a year now.
lately its slowing down drastically.
When I transfer a File from another drive the raid will transfer the file for the first 10 seconds at a good 110mb a second. But after those 10 seconds it will fall down to 25mbsec.
If I do 2 transfers it gets even worse it will fall down to 2mb a second.
Im almost at the point to kill the raid and go to JBOD , but thats a big hassle.
Crystalmark has shown a sequential speed of 615Mb a sec , but 4K is a different story I get read speeds of 44Mb/sec and 0.533 write !!!
its a 11Tb raid 5 with 7 drives and have 2.7Tb free space
All drives are WD EARS or EARX.
Stripe size is 64k
Just noticed that the BBU is bad , but my adaptec 31205 did not slow down when that occurred.
Anybody got some idea´s?
Thanks in advance [H]!
lately its slowing down drastically.
When I transfer a File from another drive the raid will transfer the file for the first 10 seconds at a good 110mb a second. But after those 10 seconds it will fall down to 25mbsec.
If I do 2 transfers it gets even worse it will fall down to 2mb a second.
Im almost at the point to kill the raid and go to JBOD , but thats a big hassle.
Crystalmark has shown a sequential speed of 615Mb a sec , but 4K is a different story I get read speeds of 44Mb/sec and 0.533 write !!!
its a 11Tb raid 5 with 7 drives and have 2.7Tb free space
All drives are WD EARS or EARX.
Stripe size is 64k
Just noticed that the BBU is bad , but my adaptec 31205 did not slow down when that occurred.
Anybody got some idea´s?
Thanks in advance [H]!
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