Path: csiph.com!2.us.feeder.erje.net!feeder.erje.net!1.eu.feeder.erje.net!newsfeed.fsmpi.rwth-aachen.de!newsfeed.straub-nv.de!eternal-september.org!feeder.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: Don Kuenz Newsgroups: sci.electronics.design Subject: Re: big drives Date: Wed, 22 Mar 2017 18:35:30 -0000 (UTC) Organization: A noiseless patient Spider Lines: 38 Distribution: world Message-ID: <20170322b@crcomp.net> References: <20170322a@crcomp.net> Injection-Date: Wed, 22 Mar 2017 18:35:30 -0000 (UTC) Injection-Info: mx02.eternal-september.org; posting-host="dd45bcb298d95e45bdad8ca864c32b25"; logging-data="21786"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX19ICAlFvEm15S/c1tiiy03B" Cancel-Lock: sha1:FcBT2ilhWVyUZjQc9YclnB3Pb4Q= Xref: csiph.com sci.electronics.design:453087 David Brown wrote: > On 22/03/17 15:23, Don Kuenz wrote: >> >> The 15K RPM 600 GB SAS RAID5 array in one of my server farms is so full >> that it recently grew into a second chassis. That sucks in many ways. >> >> The root problem is a 600 GB limitation on 15K RPM SAS hard drives that >> has been in force for about a decade now. There's been absolutely no >> improvement nor innovation in 15K RPM SAS drives over that period of >> time. >> > > My usual supplier has 15K rpm SAS at 0.9 TB, 2.5". It also has 1 GB > SSDs that are /much/ faster, and more reliable, at half the price. So > the root problem is that you are stuck in outdated technology. > > (I fully appreciate at that it can make sense to continue with what you > have, rather than change to something new even if it is cheaper, faster, > and more readily available. There can be many reasons for that.) The capacity of 3.5" 15K SAS hard drives has been stalled at an upper limit of 600 GB for about a decade now. It becomes more of a problem in the enterprise space with each passing day. "Outdated technology" seems like a cop out when brand new PCs with 3.5" hard drives larger than 10 TB are about to ship. The rationalization that users have only themselves to blame for using "outdated technology" reminds me of Dilbert's boss. "It isn't a problem if you can give it to someone else." That's what Dilbert's boss always says. Thank you, -- Don Kuenz KB7RPU