Sorry what i said was fuzzy before. Currently, my mds is running with certain osds at same node in which SSD drive serves as cache device.
| | renjianxinlover | | renjianxinlo...@163.com | 签名由网易邮箱大师定制 On 12/28/2019 15:49，Stefan Kooman<ste...@bit.nl> wrote： Quoting renjianxinlover (renjianxinlo...@163.com): HI, Nathan, thanks for your quick reply! comand 'ceph status' outputs warning including about ten clients failing to respond to cache pressure; in addition, in mds node, 'iostat -x 1' shows drive io usage of mds within five seconds as follow, You should run this iostat -x 1 on the OSD nodes ... MDS is not doing any IO in and of itself as far as Ceph is concerned. Gr. Stefan -- | BIT BV https://www.bit.nl/ Kamer van Koophandel 09090351 | GPG: 0xD14839C6 +31 318 648 688 / i...@bit.nl
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