On Thu, 28 Sep 2017 15:03:23 +1000 Eyal Lebedinsky <eyal@xxxxxxxxxxxxxx> wrote: > > Sep 22 14:59:18 e7 kernel: mptsas: ioc0: attaching sata device: fw_channel 0, fw_id 20, phy 0, sas_addr 0x70944e23a5c4b492 > > Sep 22 14:59:18 e7 kernel: scsi 6:0:0:0: Direct-Access ATA WDC WD4003FZEX-0 1A01 PQ: 0 ANSI: 5 > > Sep 22 14:59:18 e7 kernel: sd 6:0:0:0: Attached scsi generic sg2 type 0 > > Sep 22 14:59:18 e7 kernel: sd 6:0:0:0: [sdc] 4294967294 512-byte logical blocks: (2.20 TB/2.00 TiB) > > Sep 22 14:59:18 e7 kernel: sd 6:0:0:0: [sdc] Write Protect is off > > Sep 22 14:59:18 e7 kernel: sd 6:0:0:0: [sdc] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA > > Re-reading the messages I now notice that the disks are identified as > 4294967294 512-byte logical blocks: (2.20 TB/2.00 TiB) > which is wrong (these are 4TB disks, as shown below). > > I guess this controller, being a SATA-II, is not suitable for disks larger that 2TB? Great catch. These are not interdependent though, it's not 2TB incapable just because of SATA2. There are SATA2 controllers supporting 2TB+ drives. But come to think of it, I now remember the monumental article at [1] warning about the 1068E, "does not support drives larger than 2TB." [1] http://blog.zorinaq.com/from-32-to-2-ports-ideal-satasas-controllers-for-zfs-linux-md-ra/ -- With respect, Roman -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
