Arrayprobe which may need modifications to work with the hpsa driver. Offline data collection status: The function prints a message then retries the command that returned with a unit attention. If you’ve been using cciss already on these controllers, it is not recommended that you attempt to upgrade your running system to switch from cciss to hpsa unless you have a very good reason to do so and know what you are doing. It reports any status changes, like failing disks, to the syslog and optionally to a remote host using SNMP traps.
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cciss(4) – Linux manual page
Use these for 2. See TracTickets for help on using tickets.
To install, download Debian cciss source package. Here’s a sample report from arrayprobe 2. This blade has been running Windows server up until last week, when I loaded Ubuntu Total time to complete Offline data collection: For example, it seems that the default read-ahead buffer of kb is extremely small for sdsi deployment on server-class hardware.
I’ve tested both noop and deadline, but have found deadline win’s out for the testing I’ve done most recently for a cciss server. So far, I haven’t had any luck duplicating this problem.
If you need further info, asl without problems. Support for new Smart Scai controllers was added and added the ability to report status of non-volatile cache. Sign up or log in Sign up using Google. For a new install of a distribution using the hpsa driver, the “cciss. SCSI tape drive and medium changer support SCSI sequential access devices and medium changer devices are supported and appropriate device nodes are ccis created e. The cciss driver previously contained a feature which would enable it by default to run on Smart Array controllers which it did not explicitly recognize except so far as to be able to determine that they were some sort of Scsii Array.
Fixed issue where ACU would hang after several operations. I don’t see the need for the scheduler to waste cpu cycles trying to front merge IO requests. If you would like to run hpsa instead, there is a new ecsi parameter to cciss, “cciss. The hpsa driver has the ability to claim unknown Smart Scdi, however this is turned off by default so that it does not try to claim older controllers meant to be claimed by the cciss driver.
From time to time there may be instances in which hardware or driver features are not supported by the cciss driver which comes with your distribution or kernel, because it is too old, or the hardware is too new, etc. If Selective self-test is pending on power-up, resume after 0 minute delay. Please try smartmontools 5.
cciss(4) – Linux man page
Oldest first Newest first Threaded. I’m specifically looking for sysctl and sysfs options in production scenarios. The cciss driver must be informed that changes to the SCSI bus have been made.
Opened 8 years ago. This might have changed in newer drive firmware.
storage – Linux – real-world hardware RAID controller tuning (scsi and cciss) – Server Fault
Fixed a panic that could arise during an insmod and rmmod of the cciss driver. Added dynamic outstanding command turning on a per controller basis. The hpsa driver is available in the kernel. Once again decrease this value decreases your write latency while increase the value increases throughput.
Without this fix the system will panic on reboot when the HP cciss rpm has been uninstalled. This feature has been removed, as any Smart Arrays not known to cciss are now presumed to be claimed by the hpsa driver. Mkinitrd has changed on rhel5u1 and higher systems.