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.
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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