spacecabbie
Explorer
- Joined
- Aug 20, 2017
- Messages
- 99
Ok i understand there is difference in usb drive speeds but is this normal ? (have tried a 16gb kingston and 128gb patriot both are rated voor high speeds) Again i understand that means nothing but for them both be SO SO slow i am just wondering the orignal plextar jumpdrive p10 is in the main usb port on the mother board the others are tried in the back both according to the manual are 3.0 interfaces.
Code:
da0: <Kingston DataTraveler 3.0 PMAP> Removable Direct Access SPC-4 SCSI device da0: Serial Number 60A44C425091B2B0A987B1BB da0: 400.000MB/s transfers da0: 14784MB (30277632 512 byte sectors) da0: quirks=0x2<NO_6_BYTE> da1: <Lexar USB Flash Drive 1.00> Removable Direct Access SPC-4 SCSI device da1: Serial Number 13060311500102115516 da1: 400.000MB/s transfers da1: 15268MB (31268864 512 byte sectors) da1: quirks=0x2<NO_6_BYTE>
Code:
/dev/da0 512 # sectorsize 15502147584 # mediasize in bytes (14G) 30277632 # mediasize in sectors 0 # stripesize 0 # stripeoffset 1884 # Cylinders according to firmware. 255 # Heads according to firmware. 63 # Sectors according to firmware. Kingston DataTraveler 3.0 # Disk descr. 60A44C425091B2B0A987B1BB # Disk ident. No # TRIM/UNMAP support Unknown # Rotation rate in RPM Not_Zoned # Zone Mode I/O command overhead: time to read 10MB block 0.231208 sec = 0.011 msec/sector time to read 20480 sectors 28.643098 sec = 1.399 msec/sector calculated command overhead = 1.387 msec/sector root@freenas-server:~ # diskinfo -c /dev/da1 /dev/da1 512 # sectorsize 16009658368 # mediasize in bytes (15G) 31268864 # mediasize in sectors 0 # stripesize 0 # stripeoffset 1946 # Cylinders according to firmware. 255 # Heads according to firmware. 63 # Sectors according to firmware. Lexar USB Flash Drive # Disk descr. 13060311500102115516 # Disk ident. No # TRIM/UNMAP support Unknown # Rotation rate in RPM Not_Zoned # Zone Mode I/O command overhead: time to read 10MB block 0.081868 sec = 0.004 msec/sector time to read 20480 sectors 7.699264 sec = 0.376 msec/sector calculated command overhead = 0.372 msec/sector
Code:
/dev/da1 512 # sectorsize 16009658368 # mediasize in bytes (15G) 31268864 # mediasize in sectors 0 # stripesize 0 # stripeoffset 1946 # Cylinders according to firmware. 255 # Heads according to firmware. 63 # Sectors according to firmware. Lexar USB Flash Drive # Disk descr. 13060311500102115516 # Disk ident. No # TRIM/UNMAP support Unknown # Rotation rate in RPM Not_Zoned # Zone Mode Seek times: Full stroke: 250 iter in 0.094207 sec = 0.377 msec Half stroke: 250 iter in 0.094443 sec = 0.378 msec Quarter stroke: 500 iter in 0.188203 sec = 0.376 msec Short forward: 400 iter in 0.150568 sec = 0.376 msec Short backward: 400 iter in 0.150590 sec = 0.376 msec Seq outer: 2048 iter in 0.770676 sec = 0.376 msec Seq inner: 2048 iter in 0.770281 sec = 0.376 msec Transfer rates: outside: 102400 kbytes in 0.815926 sec = 125502 kbytes/sec middle: 102400 kbytes in 0.723232 sec = 141587 kbytes/sec inside: 102400 kbytes in 0.721401 sec = 141946 kbytes/sec root@freenas-server:~ # diskinfo -t /dev/da0 /dev/da0 512 # sectorsize 15502147584 # mediasize in bytes (14G) 30277632 # mediasize in sectors 0 # stripesize 0 # stripeoffset 1884 # Cylinders according to firmware. 255 # Heads according to firmware. 63 # Sectors according to firmware. Kingston DataTraveler 3.0 # Disk descr. 60A44C425091B2B0A987B1BB # Disk ident. No # TRIM/UNMAP support Unknown # Rotation rate in RPM Not_Zoned # Zone Mode Seek times: Full stroke: 250 iter in 0.529691 sec = 2.119 msec Half stroke: 250 iter in 0.544346 sec = 2.177 msec Quarter stroke: 500 iter in 1.090630 sec = 2.181 msec Short forward: 400 iter in 0.670570 sec = 1.676 msec Short backward: 400 iter in 0.704952 sec = 1.762 msec Seq outer: 2048 iter in 2.891329 sec = 1.412 msec Seq inner: 2048 iter in 2.912497 sec = 1.422 msec Transfer rates: outside: 102400 kbytes in 2.211083 sec = 46312 kbytes/sec middle: 102400 kbytes in 2.224987 sec = 46023 kbytes/sec inside: 102400 kbytes in 2.330657 sec = 43936 kbytes/sec
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