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N7510 Slow reading from NAS to PC (Windows 7 64bit Ultimate
#1
I am currently an owner of three Thecus NAS (recently 2*N7510 and an older 1*N7700pro). I use my N7700 to sotre videos mouvies (raid5 7xWD20EVDS) WITH EXCELLENT read/write velocities arround 80-100MB/sec
I recently baught a N7510 (raid 5 7*WD30EFRX RED NAS EXT4 latest firmware head parking/300sec). The RAID5 was formatted normally with EXT4/Stripe 64 BUT EVEN EMPTY IS VERY SLOW WHEN YOU READ FROM IT (MAX SPEED 50MB/SEC) WHEREAS writing to it IS FASTER ACTUALLY DOUBLE SPEED 90-100MB/SEC
All these while reading & writing from my PC (windows 7 64bit ultimate)!!! It is the same PC/switch/lan ethernet cables that the N7700 hits speeds of 100mb/sec. I actually baught the N7510 to replace my old N7700 pro..... but under these conditions I seriously doubt doing so....
For coping to and from Windows 7 I use terra copy . Disabling in terracopy the option to use system cache memory SPEEDS WRITING TO DISK BUT NOT READING FROM IT
I have tried multiple solution afaik with NO results:
1.I have tried formatting raid5 with XFS/multiple stripe n 64-512 4096.
2.I also tried this with EXT4 and 512/4096 stripe,
3. I have disabled cache in Samba CFIS,
4. I have even upgraded N7510 memory to 8GB,
5.I have tried splitting the raid to two parts one with 3 disks and the other with four....
6.Unfortunately THE SAME APPLIES TO MY OTHER OLDER N7510 which is in my office (4GB memory raid5 7xwd20ears)
Writing to NAS is excellent (80-10mb/sec) Reading from it 40mb/sec!!!!
Both N7510 are upgraded to latest firmware.....
I tried Nas Tester (or somethnig like this) a program to test write/read speads and it shows same speeds....
iS THERE ANY SOLUTION? How can an older N7700pro outrun the new N7510?
Have you any idea?
Reply
#2
I am currently an owner of three Thecus NAS (recently 2*N7510 and an older 1*N7700pro). I use my N7700 to sotre videos mouvies (raid5 7xWD20EVDS) WITH EXCELLENT read/write velocities arround 80-100MB/sec
I recently baught a N7510 (raid 5 7*WD30EFRX RED NAS EXT4 latest firmware head parking/300sec). The RAID5 was formatted normally with EXT4/Stripe 64 BUT EVEN EMPTY IS VERY SLOW WHEN YOU READ FROM IT (MAX SPEED 50MB/SEC) WHEREAS writing to it IS FASTER ACTUALLY DOUBLE SPEED 90-100MB/SEC
All these while reading & writing from my PC (windows 7 64bit ultimate)!!! It is the same PC/switch/lan ethernet cables that the N7700 hits speeds of 100mb/sec. I actually baught the N7510 to replace my old N7700 pro..... but under these conditions I seriously doubt doing so....
For coping to and from Windows 7 I use terra copy . Disabling in terracopy the option to use system cache memory SPEEDS WRITING TO DISK BUT NOT READING FROM IT
I have tried multiple solution afaik with NO results:
1.I have tried formatting raid5 with XFS/multiple stripe n 64-512 4096.
2.I also tried this with EXT4 and 512/4096 stripe,
3. I have disabled cache in Samba CFIS,
4. I have even upgraded N7510 memory to 8GB,
5.I have tried splitting the raid to two parts one with 3 disks and the other with four....
6.Unfortunately THE SAME APPLIES TO MY OTHER OLDER N7510 which is in my office (4GB memory raid5 7xwd20ears)
Writing to NAS is excellent (80-10mb/sec) Reading from it 40mb/sec!!!!
Both N7510 are upgraded to latest firmware.....
I tried Nas Tester (or somethnig like this) a program to test write/read speads and it shows same speeds....
iS THERE ANY SOLUTION? How can an older N7700pro outrun the new N7510?
Have you any idea?
Reply
#3
crystal mark report
[Image: 3gYGoYj.jpg]
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#4
crystal mark report
[Image: 3gYGoYj.jpg]
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#5
XFS 256stripe 7xWD30EFRX NAS RED, very slow seq reads from raid BUT high speed Writing 100mb/sec

[Image: z1sJq51.jpg]
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#6
XFS 256stripe 7xWD30EFRX NAS RED, very slow seq reads from raid BUT high speed Writing 100mb/sec

[Image: z1sJq51.jpg]
Reply
#7
UPDATE!
Today I tried on a EXT4 256kb stripe Raid5 7*WD30EFRX RED NAS A DOUBLE SIMULTANEOUS TRANSFER OF TWO LARGE FILES(>10GB) FROM NAS TO PC. Transfer speed was monitored by teracopy (speeds are similar with nas tester application). Both files were transered SIMULTANEOUSLY WITH A TOTAL 90-100MB/SEC (EACH one 45-50mb/sec) with a merely 20%-60% use of memory@cpu which means that NAS@PC@LAN can support reading speeds of 100mb/sec (as single file writing to NAS) SO THE PROBLEM IS SOLELY ON THE FIRMWARE 2.05.06/SAMBA CONFIGURATION WHICH FOR AN UNKOWN REASON LIMITS READING SPEED!!!!!! So if anyone of the THECUS enginners is reading SHOULD FIX IT.... AS SOON AS POSSIBLE
Reply
#8
UPDATE!
Today I tried on a EXT4 256kb stripe Raid5 7*WD30EFRX RED NAS A DOUBLE SIMULTANEOUS TRANSFER OF TWO LARGE FILES(>10GB) FROM NAS TO PC. Transfer speed was monitored by teracopy (speeds are similar with nas tester application). Both files were transered SIMULTANEOUSLY WITH A TOTAL 90-100MB/SEC (EACH one 45-50mb/sec) with a merely 20%-60% use of memory@cpu which means that NAS@PC@LAN can support reading speeds of 100mb/sec (as single file writing to NAS) SO THE PROBLEM IS SOLELY ON THE FIRMWARE 2.05.06/SAMBA CONFIGURATION WHICH FOR AN UNKOWN REASON LIMITS READING SPEED!!!!!! So if anyone of the THECUS enginners is reading SHOULD FIX IT.... AS SOON AS POSSIBLE
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