On Sun, May 8, 2016 7:31 pm, Digimer wrote: > On 08/05/16 08:12 PM, John R Pierce wrote: >> On 5/6/2016 2:26 PM, Valeri Galtsev wrote: >>> Which internal hardware RAID controllers will survive some future to >>> come >>> in your estimate. First of all my beloved 3ware finally seems to have >>> passed away. After multiple acquisitions and becoming part of LSI and >>> getting bought with LSI, it probably became non operational. Namely, >>> the >>> latest 3ware cards have ancient firmware. Neither of them supports 4kn >>> drives. This speaks for itself for me. [Under new ownership] LSI, >>> though >>> still having new controllers released, and one of their MegaRAID >>> controllers (at least) having support for 4kn drives, still may not >>> last >>> long (just my feeling, I'd like to hear yours). So, what RAID >>> controllers >>> will those of us who like to have hardware RAIDs use in some future to >>> come? >> >> >> IMHO, "Hardware" (really embedded firmware) RAID is for Windows servers, >> since MS Windows has awful integrated software raid (aka 'dynamic disk', >> truly a mess). With Linux, I'd rather use LVM, with BSD, ZFS. > > "Hardware RAID" can very well include a controller with dedicated parity > processing, battery/flash backed write caching and other tangible > benefits. Right, by "hardware RAID" as opposed to a bit more often used term "software RAID" I did mean the card that has RAID processing done by the chip on board of the card (parity or in other words modulus 2 sum in case of RAID-5, and more sophisticated math in case of RAID-6 - I have heard of at least two algorithms suitable for RAID-6). Thanks, Mr. Digimer, for clarifying my somewhat vague in this place post. Any insight, anybody, which hardware RAID cards of rather which manufacturers of these cards will still make them in a future (say next 5 years)? Even if you just have feelings, without any thought why, I would like to hear them. If you prefer to answer off the list, please, e-mail me directly at galtsev at kicp.uchicago.edu Thanks a lot! Valeri > > -- > Digimer > Papers and Projects: https://alteeve.ca/w/ > What if the cure for cancer is trapped in the mind of a person without > access to education? > _______________________________________________ > CentOS mailing list > CentOS at centos.org > https://lists.centos.org/mailman/listinfo/centos > ++++++++++++++++++++++++++++++++++++++++ Valeri Galtsev Sr System Administrator Department of Astronomy and Astrophysics Kavli Institute for Cosmological Physics University of Chicago Phone: 773-702-4247 ++++++++++++++++++++++++++++++++++++++++