I'm looking for information regarding what each of the tunable parameters returned by gfs_tool gettune actually -does-.
Output from one of my partitions:
ilimit1 = 100
ilimit1_tries = 3
ilimit1_min = 1
ilimit2 = 500
ilimit2_tries = 10
ilimit2_min = 3
demote_secs = 300
incore_log_blocks = 1024
jindex_refresh_secs = 60
gldep_secs = 30
scand_secs = 5
recoverd_secs = 60
logd_secs = 1
quotad_secs = 5
inoded_secs = 15
quota_simul_sync = 64
quota_warn_period = 10
atime_quantum = 3600
quota_quantum = 60
quota_scale = 1.0000 (1, 1)
quota_enforce = 1
quota_account = 1
new_files_jdata = 0
new_files_directio = 0
max_atomic_write = 4194304
max_readahead = 262144
lockdump_size = 131072
stall_secs = 600
complain_secs = 10
reclaim_limit = 5000
entries_per_readdir = 32
prefetch_secs = 10
statfs_slots = 64
Some of them are fairly obvious, but I'd like to have a more solid idea of what each does before I start mucking with things.
Thanks!
--
Jerry Gilyeat, RHCE
Systems Administrator
Molecular Microbiology and Immunology
Johns Hopkins Bloomberg School of Public Health
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