SAN

How to Rescan new LUN’s added in Linux, HP-UX, Aix, Solaris ?

HP-UX 1. Rescan the devices: ioscan -fnC <disk|tape> 2. Generate device files:  insf -e 3. Verify the new devices:  ioscan -funC <disk|tape> AIX 1. Rescan the devices ):  cfgmgr -vl fcsx Where x is FC adapter number 2. Verify the new devices:  lsdev -Cc <disk|tape> Linux The rescan in Linux is HBA-specific. For QLogic: echo …

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IOPS calculation

What is IOPS? IOPS (Input Output Per Second) is a common performance metrics used for comparing/measuring the performance of Storage systems like HDD, SSD, SAN. Quick Calculation sheet RPM IOPS 15 K 175 IOPS 10 K 125 IOPS 7.2 K 75 IOPS 5.4 K 50 IOPS How to Calculate IOPS requirement? We will consider the …

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System Panic During Boot Logging the Error “NOTICE: zfs_parse_bootfs: error 19”

Today while migrating SAN i face this issue, hope it will help others too… The system panic during boot logging the error: {0} ok boot 56024-disk Boot device: /virtual-devices@100/channel-devices@200/disk@1 File and args: SunOS Release 5.10 Version Generic_147440-01 64-bit Copyright (c) 1983, 2011, Oracle and/or its affiliates. All rights reserved. NOTICE: zfs_parse_bootfs: error 19 Cannot mount …

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Brocade SAN Switch NTP Setting the date and time

DS_300B_234:admin> date Tue Dec 31 06:43:16 UTC 2013 DS_300B_234:admin> tstimezone Time Zone Hour Offset: 0 Time Zone Minute Offset: 0 DS_300B_234:admin> date Tue Dec 31 06:45:59 UTC 2013 DS_300B_234:admin> tstimezone –interactive Please identify a location so that time zone rules can be set correctly. Please select a continent or ocean. 1) Africa 2) Americas 3) …

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