09-02-2015, 08:07 PM
@Austin Payne,
These are my measured speeds on my best PC with SATA3
This is my SSD(Samsung 850Pro):
dave@sm-xh97:~$ sudo hdparm -t /dev/sda
[sudo] password for dave:
/dev/sda:
Timing buffered disk reads: 1560 MB in 3.00 seconds = 519.37 MB/sec
dave@sm-xh97:~$
This is my HD(Western Digital - Black)
dave@sm-xh97:~$ sudo hdparm -t /dev/sdb
/dev/sdb:
Timing buffered disk reads: 344 MB in 3.00 seconds = 114.48 MB/sec
dave@sm-xh97:~$
I dug this out of my PC notes, the 3 flavours of SATA(max speeds)
SATA1 or SATA/150 = 1,5Gbps or 150MB/s
SATA2 or SATA/300 = 3,0Gbps or 300MB/s
SATA3 or SATA/600 = 6,0Gbps or 600MB/s
I could use SATA1 for the HD, but for SSD it would be a bottleneck.
Remember they quote Gbps for SATA not MB/s
These are my measured speeds on my best PC with SATA3
This is my SSD(Samsung 850Pro):
dave@sm-xh97:~$ sudo hdparm -t /dev/sda
[sudo] password for dave:
/dev/sda:
Timing buffered disk reads: 1560 MB in 3.00 seconds = 519.37 MB/sec
dave@sm-xh97:~$
This is my HD(Western Digital - Black)
dave@sm-xh97:~$ sudo hdparm -t /dev/sdb
/dev/sdb:
Timing buffered disk reads: 344 MB in 3.00 seconds = 114.48 MB/sec
dave@sm-xh97:~$
I dug this out of my PC notes, the 3 flavours of SATA(max speeds)
SATA1 or SATA/150 = 1,5Gbps or 150MB/s
SATA2 or SATA/300 = 3,0Gbps or 300MB/s
SATA3 or SATA/600 = 6,0Gbps or 600MB/s
I could use SATA1 for the HD, but for SSD it would be a bottleneck.
Remember they quote Gbps for SATA not MB/s
Upgrades WIP 2.6 to 2.8 - (6 X 2.6 to 2.8 completed on: 20/02/16 All O.K )
Linux Lite 3.0 Humming on a ASRock N3070 Mobo ~ btrfs RAID 10 Install on 4 Disks
Computers Early days:
ZX Spectrum(1982) , HP-150 MS-DOS(1983) , Amstrad CPC464(1984) , BBC Micro B+64(1985) , My First PC HP-Vectra(1987)
Linux Lite 3.0 Humming on a ASRock N3070 Mobo ~ btrfs RAID 10 Install on 4 Disks
Computers Early days:
ZX Spectrum(1982) , HP-150 MS-DOS(1983) , Amstrad CPC464(1984) , BBC Micro B+64(1985) , My First PC HP-Vectra(1987)