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Operating Systems
Linux
Red Hat
Volume group not activated at boot after SAN migration
Post 302952168 by rbatte1 on Friday 14th of August 2015 12:02:58 PM
08-14-2015
Moderator
We're sure this is not NAS. Plain fibre cards with SCSI devices being detected. We probe down the fibre cards which generates /dev/sdn devices. We then blend the four paths to form multipath devices that we then use as a PV to add to the volume groups.
Much of this is automatic first time, but we did a bit of the hokey-cokey on our first few attempts so after clearing old definitions away the auto-discovery stopped.
Everything seemed fine whilst we had the new LUNs in the VG and in use but the old ones not removed. A boot would complete normally, it's just when we've removed the old LUNs from the VGs that it went off. Perhaps the old LUNs (as part of the VGs) had the VG information on them and so they would respond and the VG would vary on even though there were LUNs still initialising.
All very confusing though
Robin
Much of this is automatic first time, but we did a bit of the hokey-cokey on our first few attempts so after clearing old definitions away the auto-discovery stopped.
Everything seemed fine whilst we had the new LUNs in the VG and in use but the old ones not removed. A boot would complete normally, it's just when we've removed the old LUNs from the VGs that it went off. Perhaps the old LUNs (as part of the VGs) had the VG information on them and so they would respond and the VG would vary on even though there were LUNs still initialising.
All very confusing though
Robin
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LEARN ABOUT SUNOS
hpfc
hpfc(7D) Devices hpfc(7D) NAME
hpfc - Agilent fibre channel host bus adapter SYNOPSIS
PCI pci103c DESCRIPTION
The hpfc fibre channel host bus adapter is a SCSA compliant nexus driver that supports all Agilent fibre channel host bus adapters, includ- ing the HHBA5100x, HHBA5101x, and HHBA5121x models. Agilent host bus adapters support the fibre channel protocol on private fibre channel arbitrated loops and fabrics. The driver supports up to ten host bus adapters, with a maximum of 125 fibre channel devices on each host bus adapter. The hpfc driver supports a maximum of 256 LUNs per target. The hpfc driver does not support the BIOS Int 13 feature, which enables the booting of an operating system. As a result, you should not install an operating system on devices attached to the hpfc driver. CONFIGURATION
The hpfc driver attempts to configure itself using the information in the /kernel/drv/hpfc.conf configuration file. By default, the driver supports only LUN 0 for each target device. To add multiple LUN support, modify the /kernel/drv/sd.conf file. Before upgrading the hpfc driver, backup the sd.conf file to save customized LUN settings and then use pkgrm(1M) to remove the old version of the driver. The host bus adapter port is initialized to FL_Port when connected to a fabric switch. To change it to F_Port, add the init_as_nport=1 entry to the hpfc.conf file and reboot the system. To conserve system resources, at least one disk drive must be attached to the hpfc driver. If no devices are attached, the driver will not load. FILES
/kernel/drv/hpfc 32-bit ELF kernel module /kernel/drv/sparcv9/hpfc 64-bit ELF kernel module /kernel/drv/hpfc.conf Driver configuration file /kernel/drv/sd.conf SCSI disk configuration file ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Architecture |x86, SPARC | +-----------------------------+-----------------------------+ SEE ALSO
luxadm(1M), pkgrm(1M), prtconf(1M), driver.conf(4), attributes(5), ses(7D), ssd(7D) ANSI X3.272-1996, Fibre Channel Arbitrated Loop (FC-AL), ANSI X3.269-1996, Fibre Channel Protocol for SCSI (FCP), ANSI X3.270-1996, SCSI-3 Architecture Model (SAM), Fibre Channel Private Loop SCSI Direct Attach (FC-PLDA) SunOS 5.10 10 Oct 2000 hpfc(7D)