Polytechnique USB flash drives

~8GB, lsblk reports 7796176 * 1KB = 7983284224 bytes.

We got a handful of those from École Polytechnique at the end of studies I think.

They are shaped like bicornes, which is super cool, but also super impractical!

Markings: "AX ÉCOLE POLYTECHNIQUE PROMOTION X2009"

20.04 gnome-disks program reports it as: "SMI USB DISK".

From Ubuntu 20.04 on an ext4 formatted one:

/dev/sdb:
 Timing cached reads:   28656 MB in  1.99 seconds = 14421.31 MB/sec
SG_IO: bad/missing sense data, sb[]:  70 00 05 00 00 00 00 0a 00 00 00 00 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 Timing buffered disk reads:  42 MB in  3.03 seconds =  13.88 MB/sec

With Linux Unified Key Setup + ext4 the results are similar, maybe hdparam bypasses it?

/dev/sdb:
 Timing cached reads:   28326 MB in  1.99 seconds = 14251.55 MB/sec
SG_IO: bad/missing sense data, sb[]:  70 00 05 00 00 00 00 0a 00 00 00 00 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 Timing buffered disk reads:  38 MB in  3.11 seconds =  12.23 MB/sec

gnome-disks LUKS + ext4 benchmark with default params also gives about 14 MB/s.

Polytechnique USB flash drives

 Ancestors (7)