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scsirastools: Serviceability for SCSI Disks and Arrays

(auf gut Glück)		(meist engl.)		(falls vorhanden)

Zusammenfassung (meist engl.)

Hard disks are the most commonly replaced system elements, and are therefore a critical consideration for improving availability. Root Disk Mirroring (RAID-1) is the technique of using redundant disks to record multiple copies of the data so that one disk failure will not cause data loss. This project includes changes that enhance the Reliability, Availability, and Serviceability (RAS) of the drivers that are commonly used in a Linux software RAID-1 configuration. Other efforts have been made to enable various common hardware RAID adapters and their drivers on Linux. The tools in this project were designed to add to the serviceability of SCSI devices under Linux so that the system does not have to be rebooted or taken out of service to perform common maintenance or service functions. This project has user-space and kernel level components: sgraidmon - a tool to monitor software RAID disks for hot-insertion/removal; Note that this uses raidtools like mdadm to re-configure the new disk. sgdefects - a tool to read the primary and grown defect lists sgdskfl - a tool to load disk firmware to SCSI disks under Linux; some sample firmware images are included in the package sgmode - a tool to get and set SCSI device mode pages; some sample mode page definition files are included in the package sgdiag - a tool to perform format and other diagnostic functions The scsiras patches are not currently included in our kernel. Authors: -------- Andy Cress <arcress@users.sourceforge.net> Tariq Shureih <tariqx@users.sourceforge.net>