[gpfsug-discuss] Asymetric SAN with GPFS

[Marc A Kaplan]

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.htm>
-------------- 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>