OK, thanks a lot
I am on Linux Mint 20.3 with my system on an USB external drive, ST500LT012 inside
Code:
[ 1.596124] ata4: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
[ 1.597189] usb-storage 1-4:1.0: USB Mass Storage device detected
[ 1.597697] scsi host8: usb-storage 1-4:1.0
[ 1.638004] ata4.00: ATA-7: ST3500630A, 3.AAF, max UDMA/100
[ 1.638018] ata4.00: 976773168 sectors, multi 16: LBA48
[ 1.696335] ata4.00: configured for UDMA/100
[ 1.696910] scsi 3:0:0:0: Direct-Access ATA ST3500630A F PQ: 0 ANSI: 5
[ 1.697609] sd 3:0:0:0: Attached scsi generic sg0 type 0
[ 1.697971] sd 3:0:0:0: [sda] 976773168 512-byte logical blocks: (500 GB/466 GiB)
[ 1.697993] sd 3:0:0:0: [sda] Write Protect is off
[ 1.697997] sd 3:0:0:0: [sda] Mode Sense: 00 3a 00 00
[ 1.698063] sd 3:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 1.774790] sda: sda1 sda2 sda3 sda4 < sda5 sda6 sda7 >
[ 1.812420] sd 3:0:0:0: [sda] Attached SCSI disk
[ 1.830910] scsi host9: uas
[ 1.831384] usbcore: registered new interface driver uas
[ 1.832466] scsi 9:0:0:0: Direct-Access Seagate BUP Slim BK 0938 PQ: 0 ANSI: 6
[ 1.834559] sd 9:0:0:0: Attached scsi generic sg1 type 0
[ 1.853775] sd 9:0:0:0: [sdb] 976773167 512-byte logical blocks: (500 GB/466 GiB)
[ 1.854254] sd 9:0:0:0: [sdb] Write Protect is off
[ 1.854257] sd 9:0:0:0: [sdb] Mode Sense: 2b 00 10 08
[ 1.855187] sd 9:0:0:0: [sdb] Write cache: enabled, read cache: enabled, supports DPO and FUA
So I am very disappointed because Linux Mint make me take risks with my data
if I understand well, this drive cache is the same as what they call buffer on the hard drive manufacturer side ?