Think GPFS POOLs ... Generally, you should not mix different kinds of LUNs into the same GPFS POOL. From: Lukas Hejtmanek <xhejtman at ics.muni.cz> To: gpfsug-discuss at spectrumscale.org Date: 07/29/2019 12:12 PM Subject: [EXTERNAL] [gpfsug-discuss] Asymetric SAN with GPFS Sent by: gpfsug-discuss-bounces at spectrumscale.org Hello, is there any settings for GPFS 5.x so that you could mitigate slow down of asymmetric SAN? The asymmetric SAN means, that not every LUN has the same speed, or not every disk array has the same number of LUNs. It seems that overal speed is degraded to the slowest LUN. Is there any workaround for this except avoiding that LUN at all? -- Lukáš Hejtmánek Linux Administrator only because Full Time Multitasking Ninja is not an official job title _______________________________________________ gpfsug-discuss mailing list gpfsug-discuss at spectrumscale.org https://urldefense.proofpoint.com/v2/url?u=http-3A__gpfsug.org_mailman_listinfo_gpfsug-2Ddiscuss&d=DwIFBA&c=jf_iaSHvJObTbx-siA1ZOg&r=cvpnBBH0j41aQy0RPiG2xRL_M8mTc1izuQD3_PmtjZ8&m=4g2oEvesNo0UZtsAeNzm33hQ9jYDALfLllZkZ2nMpak&s=aRp743C0EJjuap9PuF7U5CoPcqti2RRnGi6CwKojYtI&e= -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://gpfsug.org/pipermail/gpfsug-discuss_gpfsug.org/attachments/20190808/daed4600/attachment.html> -------------- next part -------------- A non-text attachment was scrubbed... Name: graycol.gif Type: image/gif Size: 105 bytes Desc: not available URL: <http://gpfsug.org/pipermail/gpfsug-discuss_gpfsug.org/attachments/20190808/daed4600/attachment.gif>
