what is tiered storage?
I do not know enough to ask this question better. Searched SF posts but found nothing that could be comprehended.
Linux – what is tiered storage
linuxraidsolarisstorage
linuxraidsolarisstorage
what is tiered storage?
I do not know enough to ask this question better. Searched SF posts but found nothing that could be comprehended.
Best Answer
Tiered Storage is a term you typically hear SAN and NAS vendors talk about. In these storage systems, you typically would have several different tiers of disk in your arrays - some very high-end enterprise SSD or FC disks, all the way down to cheap midline 7200RPM SATA disks. In a setup like this, Tiered storage would allow your data to move around to/from different tiers depending on usage.
One typical instance of this would be a ZFS server with a ZIL (write log) spanning two small mirrored SSDs and then a big bucket of spinning-disk bulk storage. In this instance, all writes would be written at SSD speeds but obviously due to the small size of these SSDs, they can't hold all of your data. As such, the filesystem would migrate data down to the slower/cheaper disk tiers as it is able.
The end result of tiered storage is that it allows you to take advantage of a few fast expensive disks without needing to purchase enough of these disks to hold your whole dataset.