●hdparm
[root@apc01 ~]# hdparm /dev/sdc1
/dev/sdc1:
multcount = 128 (on)
IO_support = 1 (32-bit)
readonly = 0 (off)
readahead = 8192 (on)
geometry = 12/255/63, sectors = 202752, start = 2048
[root@apc01 ~]# hdparm -i /dev/sdc1
/dev/sdc1:
Model=VBOX HARDDISK, FwRev=1.0, SerialNo=VB34cb7f1d-676eba52
Config={ Fixed }
RawCHS=203/16/63, TrkSize=0, SectSize=512, ECCbytes=0
BuffType=DualPortCache, BuffSize=256kB, MaxMultSect=128, MultSect=128
CurCHS=203/16/63, CurSects=204624, LBA=yes, LBAsects=204800
IORDY=yes, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 udma4 udma5 *udma6
AdvancedPM=no WriteCache=enabled
Drive conforms to: unknown: ATA/ATAPI-1,2,3,4,5,6
* signifies the current active mode
[root@apc01 ~]# hdparm -tT /dev/sdc1
/dev/sdc1:
Timing cached reads: 20810 MB in 1.99 seconds = 10442.63 MB/sec
Timing buffered disk reads: 98 MB in 0.59 seconds = 164.76 MB/sec