Recently purchased an HP N40L to set up for a NAS, installed 8GB RAM, and a Startech 4 port PCIeX4 SATA III controller card. I have used the most recent BIOS-mod to open all the bios features (I didn't use the russian one, but the one from here http://homeservershow.com/forums/in...for-microserver-n40l-enables-hidden-features/
I have a random collection of HDD drives lying around and have decided to put them together to see what happens. They are listed below:
SIZE type SATA MAN MODEL
2TB HDD 300 Samsung HD204UI
1.5TB HDD 300 Seagate ST31500341AS
1TB HDD 300 Samsung HD103UJ
1TB HDD 300 Samsung HD103UJ
250GB HDD 300 Seagate ST3250318AS
250GB HDD 150 Seagate ST3250310AS
60GB SSD 600 Crucial CT064M4SSD2
120GB SSD 600 OCZ AGT3-25SAT3-120G
Initially I have the first 4 drives occupying the four drive bays on the N40L, but I was getting aweful speeds. When i tested each drive separately I identified the two 1TB, SATA II drives, as having write speeds of ONLY 14MB/s, which is VERY SLOW. They still had read speeds of >100MB/s, but just slow write. Only these two drive are affected. In fact the older SATA I, 250GB HDD has read and write of over 70 MB/s and all the other HDD have read and write of over >100 MB/s as expected. unplugging the other drives does not change things. changing the drive bays around does not change things. plugging one of them into the 5th port designed for the disk drive does not change anything, however, any one of the other drives will easily read/write >100MB/s in this same slot.
I refused to believe that BOTH drive could have the same problem as I have two. So i plugged them into the eSATA port in the HP machine, via one of these HDD dock devices, and MAGIC, suddenly both 1TB drives that only wrote at 14MB/s now read and write at >100MB/s. The same is true if I plug them both into the SATA PCI controller card.
WHAT on each is causing this?
Why is it JUST these two drives that fail to work, correctly, but the others including older SATA I drives are not affected.
I have tried adjusting the settings in the bios for IDE, legacy IDE, AHCI, and power management but to no avail.
This is the command I was using to write/read
dd if=/dev/zero of=/mnt/hdd/ddfile bs=2048k count=10000
dd if=/mnt/hdd/ddfile of=/dev/zero bs=2048k count=10000
which gives a 20GB file.
ANY ideas would be appreciated?
Thanks for having a look if you got this far!
Andrew
I have a random collection of HDD drives lying around and have decided to put them together to see what happens. They are listed below:
SIZE type SATA MAN MODEL
2TB HDD 300 Samsung HD204UI
1.5TB HDD 300 Seagate ST31500341AS
1TB HDD 300 Samsung HD103UJ
1TB HDD 300 Samsung HD103UJ
250GB HDD 300 Seagate ST3250318AS
250GB HDD 150 Seagate ST3250310AS
60GB SSD 600 Crucial CT064M4SSD2
120GB SSD 600 OCZ AGT3-25SAT3-120G
Initially I have the first 4 drives occupying the four drive bays on the N40L, but I was getting aweful speeds. When i tested each drive separately I identified the two 1TB, SATA II drives, as having write speeds of ONLY 14MB/s, which is VERY SLOW. They still had read speeds of >100MB/s, but just slow write. Only these two drive are affected. In fact the older SATA I, 250GB HDD has read and write of over 70 MB/s and all the other HDD have read and write of over >100 MB/s as expected. unplugging the other drives does not change things. changing the drive bays around does not change things. plugging one of them into the 5th port designed for the disk drive does not change anything, however, any one of the other drives will easily read/write >100MB/s in this same slot.
I refused to believe that BOTH drive could have the same problem as I have two. So i plugged them into the eSATA port in the HP machine, via one of these HDD dock devices, and MAGIC, suddenly both 1TB drives that only wrote at 14MB/s now read and write at >100MB/s. The same is true if I plug them both into the SATA PCI controller card.
WHAT on each is causing this?
Why is it JUST these two drives that fail to work, correctly, but the others including older SATA I drives are not affected.
I have tried adjusting the settings in the bios for IDE, legacy IDE, AHCI, and power management but to no avail.
This is the command I was using to write/read
dd if=/dev/zero of=/mnt/hdd/ddfile bs=2048k count=10000
dd if=/mnt/hdd/ddfile of=/dev/zero bs=2048k count=10000
which gives a 20GB file.
ANY ideas would be appreciated?
Thanks for having a look if you got this far!
Andrew