Cost per useful gigabyte
Users want cheap disk. They don’t know it, but they also want fast disk. IT in turn wants reliable disk.
IT has several options to provide disk to services: local disk, external SCSI/etc-attached disk drawers, SAN-attached disk, NAS devices (e.g. NetApp CIFS/NFS disk), iSCSI, all of the above served via NFS/CIFS/AFS/GPFS/GFS/other protocols, …
So I started by looking at commodity hard drives, via Tom’s Hardware. You can even sort by cost per gigabyte. The hard drives here are ultra-junky.
My thinking right now is that cheap local server disk is a reasonable trade-off: useful, RAID-enabled disk and CPU … Continue Reading