White Papers

Table of contents
5 Dell EMC SC Series: Red Hat Enterprise Linux Best Practices | CML1031
4.5 SCSI device queue settings ............................................................................................................................. 43
4.5.1 I/O scheduler .................................................................................................................................................... 43
4.5.2 read_ahead_kb ................................................................................................................................................. 45
4.5.3 nr_requests ....................................................................................................................................................... 46
4.5.4 max_sectors_kb................................................................................................................................................ 46
4.6 iSCSI considerations ........................................................................................................................................ 47
5 Useful tools ................................................................................................................................................................. 48
5.1 The lsscsi command ......................................................................................................................................... 48
5.2 /usr/bin/rescan-scsi-bus.sh ............................................................................................................................... 48
5.3 The scsi_id command ....................................................................................................................................... 49
5.4 Decoding the WWID ......................................................................................................................................... 50
5.5 The dmesg command ....................................................................................................................................... 51
6 Dell Storage REST API .............................................................................................................................................. 52
A Technical support and resources ............................................................................................................................... 53
A.1 Additional resources ......................................................................................................................................... 53