Date: Thu, 7 Jun 2018 21:12:39 +0100 From: Arthur Chance <freebsd@qeng-ho.org> To: Christos Chatzaras <chris@cretaforce.gr>, FreeBSD <freebsd-questions@freebsd.org> Subject: Re: Toshiba disk low performance Message-ID: <d9a93323-cb2c-d7eb-ed5d-657d162c0614@qeng-ho.org> In-Reply-To: <5D96200B-649B-4851-9FC6-F56F3188326B@cretaforce.gr> References: <DC4343C3-AC15-427E-9653-4C6A7F4E34C4@cretaforce.gr> <20180607171933.6b4babd094f4d056da797cf5@sohara.org> <5D96200B-649B-4851-9FC6-F56F3188326B@cretaforce.gr>
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On 07/06/2018 17:54, Christos Chatzaras wrote: > I test it with 3 different servers with Toshiba HDDs. The disks are new, only few hours in usage. I don't think they have any bad sectors. Backblaze are my go-to source for disk performance. Looking at the latest quarterly report (https://www.backblaze.com/blog/hard-drive-stats-for-q1-2018/) although they are trying out Toshiba's new 8TB drives, it's noticeable that they only have 191 Toshiba drives deployed out of an entire fleet of 98,046 drives. This rather suggests they are not keen on Toshiba disks. You'd need to look back through their quarterly reports to find out why though. -- An amusing coincidence: log2(58) = 5.858 (to 0.0003% accuracy).
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