GPFS NATIVE RAID PDF

GPFS (General Parallel File System) is widely used in HPC systems and GPFS. Native RAID (GNR) is a newly added, robust RAID layer tightly integrated into. If you beleive the viewpoint that hardware Raid ‘is dead’ then GNR will not be the only s/w Raid that will be used to underly Spectrum Scale. mmlspdisk which Lists information for one or more GPFS Native RAID pdisks. To check faulty disks, do the commands # mmlspdisk all –not-ok.

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GPFS Native RAID | Storage CH Blog

An end-to-end data integrity check, using checksums and version numbers, is maintained between the disk surface daid NSD clients. The number of disks is not restricted to a multiple of the RAID redundancy code width, which allows flexibility in the number of disks in the RAID array.

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One disk array can support vdisks with different redundancy schemes,for example Reed-Solomon and replication codes.

A disk hospital asynchronously diagnoses faulty disks and paths, and requests replacement of disks by using past gpsf records. Seamlessly and automatically recovers from primary server failure.

A disk scrubber automatically detects and repairs latent sector errors in the background. Standard GPFS command syntax is used for all configuration commands; including, maintaining and replacing failed disks. Support of JBOD enclosures with multiple disks physically mounted together on removable carriers.

Does this mean you no longer need a shared disk solution i.

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