HP ProLiant DL380G5-WSS 3.7.0 HP StorageWorks HP Scalable NAS File Serving Sof - Page 375
Membership partition timeout, PSFS/psd timeout, Restart the nodes, After the storage capacity upgrade
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Membership partition timeout The membership partition timeout should be increased to 120 seconds (120000ms). The timeout is specified in the mxinit.conf file, which is located in the /etc/ opt/hpcfs directory. Locate the following line in the file: # sanpulse_start_options = { "--mxinit" }; Change the line as follows: # sanpulse_start_options = { "mxinit", "-o sdmp_io_timeout=120000" }; PSFS/psd timeout This timeout affects the psd devices that make up the abstracted block layer to PSFS filesystems. Increase the timeout to 180 seconds. The timeout is set in the scl.conf file, which is located in the /etc/opt/hpcfs directory. Locate the following line in the file: #psd_timeout 90 Remove the comment character (#) at the beginning of the line and set the psd_timeout value to 180: psd_timeout 180 Restart the nodes After changing the timeouts on all nodes, stop and restart HP Scalable NAS on each node. The stop/restart can be performed on one node at a time. Caveat: Increasing the timeouts allows the array to complete its data rebalancing operations. However, the performance of the running cluster will be impacted. For example, if an I/O of a 4K block takes one minute, it is possible that all users will be serialized behind this cluster-wide blocking I/O. This is more likely when creating files than with a read-only workload. For this reason, HP recommends that you insert/replace new drives at times of lower user workload. After the storage capacity upgrade When the disk upgrade is complete, restore the original mxinit.conf and scl.conf files. After this changes are made on all nodes, stop and restart HP Scalable NAS on each node. The stop/restart can be performed on one node at a time. HP Scalable NAS File Serving Software administration guide 375
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