Re: Disabling write cache on SATA HDDs reduces write latency 7 times

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WD Red here






-----Original Message-----
From: Ashley Merrick [mailto:singapore@xxxxxxxxxxxxxx] 
Sent: zondag 11 november 2018 13:47
To: Vitaliy Filippov
Cc: Marc Roos; ceph-users
Subject: Re:  Disabling write cache on SATA HDDs reduces 
write latency 7 times

Either more weird then, what drives is in the other cluster?

On Sun, 11 Nov 2018 at 7:19 PM, Vitaliy Filippov <vitalif@xxxxxxxxxx> 
wrote:


	It seems no, I've just tested it on another small cluster with HDDs 
only -  
	no change
	
	> Does it make sense to test disabling this on hdd cluster only?
	
	-- 
	With best regards,
	   Vitaliy Filippov
	


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