I don’t know the model but they are inland pros
from wendell: I tested the drives to ~400mb read+ and 350+ mb write+ but the hdparm stats are interesting:
sda 8:0 0 953.9G 0 disk
└─sda1 8:1 0 953.8G 0 part
└─md127 9:127 0 2.8T 0 raid10 /home/lv1/1
sdb 8:16 0 953.9G 0 disk
└─sdb1 8:17 0 953.8G 0 part
└─md127 9:127 0 2.8T 0 raid10 /home/lv1/1
sdc 8:32 0 953.9G 0 disk
└─sdc1 8:33 0 953.8G 0 part
└─md127 9:127 0 2.8T 0 raid10 /home/lv1/1
sdd 8:48 0 953.9G 0 disk
└─sdd1 8:49 0 953.8G 0 part
└─md127 9:127 0 2.8T 0 raid10 /home/lv1/1
sde 8:64 0 953.9G 0 disk
└─sde1 8:65 0 953.8G 0 part
└─md127 9:127 0 2.8T 0 raid10 /home/lv1/1
sdf 8:80 0 953.9G 0 disk
└─sdf1 8:81 0 953.8G 0 part
└─md127 9:127 0 2.8T 0 raid10 /home/lv1/1
nvme0n1 259:0 0 238.5G 0 disk
├─nvme0n1p1 259:1 0 512M 0 part /boot/efi
└─nvme0n1p2 259:2 0 238G 0 part /
root@lv1-System-Product-Name:/home/lv1/1# hdparm -t /dev/sda
/dev/sda:
Timing buffered disk reads: 564 MB in 3.02 seconds = 186.63 MB/sec
root@lv1-System-Product-Name:/home/lv1/1# hdparm -t /dev/sdb
/dev/sdb:
Timing buffered disk reads: 1318 MB in 3.00 seconds = 439.32 MB/sec
root@lv1-System-Product-Name:/home/lv1/1# hdparm -t /dev/sdc
/dev/sdc:
Timing buffered disk reads: 1320 MB in 3.00 seconds = 439.92 MB/sec
root@lv1-System-Product-Name:/home/lv1/1# hdparm -t /dev/sdd
/dev/sdd:
Timing buffered disk reads: 1312 MB in 3.00 seconds = 436.97 MB/sec
root@lv1-System-Product-Name:/home/lv1/1# hdparm -t /dev/sde
/dev/sde:
Timing buffered disk reads: 1312 MB in 3.00 seconds = 437.07 MB/sec
root@lv1-System-Product-Name:/home/lv1/1# hdparm -t /dev/sdf
/dev/sdf:
Timing buffered disk reads: 250 MB in 3.00 seconds = 83.29 MB/sec
sda and sdf are much slower than expected. these are known to not be this slow. We are investigating.
that is testing each in turn. Testing (read) each simultaneously shows no bottleneck at a hardware level:
/testall.sh
/dev/sda:
/dev/sdb:
/dev/sdc:
/dev/sdd:
root@lv1-System-Product-Name:/home/lv1/1#
/dev/sde:
/dev/sdf:
Timing buffered disk reads: Timing buffered disk reads: Timing buffered disk reads: Timing buffered disk reads: Timing buffered disk reads: Timing buffered disk reads:
1318 MB in 3.00 seconds = 439.28 MB/sec
1312 MB in 3.00 seconds = 437.27 MB/sec
1316 MB in 3.00 seconds = 438.52 MB/sec
1312 MB in 3.00 seconds = 437.05 MB/sec
1148 MB in 3.00 seconds = 382.34 MB/sec
418 MB in 3.00 seconds = 139.10 MB/sec
except for the two odd drives. (sda has sped up a bit since wiggling the cable?)