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51 Dell EMC SC Series: Red Hat Enterprise Linux Best Practices | CML1031
5.5 The dmesg command
The dmesg command is useful for discovering which device names are assigned to recently discovered
volumes. The following output demonstrates the discovery and assignment of a new SC Series volume to the
/dev/sdh device file.
# dmesg
[snip]
[1203830.267568] scsi 4:0:0:1: Direct-Access COMPELNT Compellent Vol 0605
PQ: 0 ANSI: 5
[1203830.267996] sd 4:0:0:1: Attached scsi generic sg8 type 0
[1203830.268089] sd 4:0:0:1: [sdh] 20971520 512-byte logical blocks: (10.7
GB/10.0 GiB)
[1203830.268093] sd 4:0:0:1: [sdh] 4096-byte physical blocks
[1203830.268847] sd 4:0:0:1: [sdh] Write Protect is off
[1203830.268858] sd 4:0:0:1: [sdh] Mode Sense: 8f 00 00 08
[1203830.269033] sd 4:0:0:1: [sdh] Write cache: disabled, read cache: enabled,
doesn't support DPO or FUA
[snip]