1DPM‐MODIFYPOOL(1)         DPM Administrator Commands         DPM‐
2MODIFYPOOL(1)
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6[1mNAME[0m
7       dpm‐modifypool ‐ modify a disk pool definition
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9[1mSYNOPSIS[0m
10       [1mdpm‐modifypool   ‐‐poolname   [4m[22mpool_name[24m    [
11[1m‐‐def_filesize  [4m[22mdefsize[24m  ]  [
12       [1m‐‐def_lifetime      [4m[22mdef_lifetime[24m     ]     [
13[1m‐‐def_pintime   [4m[22mdefpintime[24m   ]   [
14       [1m‐‐gc_start_thresh       [4m[22mperc[24m       ]       [
15[1m‐‐gc_stop_thresh      [4m[22mperc[24m     ]     [     [1m‐‐gid
16[4m[22mpool_gids[24m ]
17       [ [1m‐‐group [4m[22mpool_groups[24m ] [ [1m‐‐help [22m]  [
18[1m‐‐max_lifetime  [4m[22mmax_lifetime[24m  ]  [
19       [1m‐‐max_pintime [4m[22mmaxpintime[24m ] [ [1m‐‐ret_policy
20[4m[22mretention_policy[24m ] [ [1m‐‐s_type[0m
21       [4mspace_type[24m ]
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23[1mDESCRIPTION[0m
24       [1mdpm‐modifypool [22mmodifies a disk pool definition.
25
26       This command requires ADMIN privilege.
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28[1mOPTIONS[0m
29       [4mpool_name[0m
30              specifies the disk pool name.  It must be  at  most
31CA_MAXPOOL‐
32              NAMELEN characters long.
33
34       [4mdefsize[0m
35              specifies  the default amount of space reserved for
36a file.  This
37              is by default in bytes, but the  number  may   also
38be  post‐fixed
39              with ’k’, ’M’ or ’G’ for kilobyte, Megabyte and Gi‐
40gabyte respec‐
41              tively.
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43       [4mdef_lifetime[0m
44              specifies the default time a space or volatile file
45is  kept  in
46              the system (in seconds).
47
48       [4mdefpintime[0m
49              specifies   the   default  time a file is kept on a
50given disk (in
51              seconds).
52
53       [4mgc_start_thresh[0m
54              specifies the minimum free space in the  pool.   If
55the percentage
56              of  free  space  goes below this value, the garbage
57collector is
58              started.
59
60       [4mgc_stop_thresh[0m
61              specifies the percentage of free space in the  pool
62above  which
63              the garbage collector is stopped.
64
65       [4mmax_lifetime[0m
66              specifies   the   maximum  time a space or volatile
67file is kept in
68              the system (in seconds).
69
70       [4mmaxpintime[0m
71              specifies the maximum time a  file  is  kept  on  a
72given  disk  (in
73              seconds).
74
75       [4mpool_gids[0m
76              The  existing  list can be reset using a comma sep‐
77arated list of
78              group gids, extended by prefixing the gid by  +  or
79reduced  by
80              prefixing the gid by ‐.  See examples.
81
82       [4mpool_groups[0m
83              The  existing  list can be reset using a comma sep‐
84arated list of
85              group names, extended by prefixing the name by + or
86reduced  by
87              prefixing   the name by ‐.  The keyword "ALL" means
88non‐dedicated
89              pool.  See examples.
90
91       [4mretention_policy[0m
92              specifies the retention  policy  supported  by  the
93disk  pool.  It
94              can  be  [1mR [22m(for Replica), [1mO [22m(for Out‐
95put) or [1mC [22m(for Custodial).
96
97       [4mspace_type[0m
98              indicates  the  type of space supported in the disk
99pool. It can
100              be [1mV [22m(for Volatile), [1mD [22m(for Durable),
101[1mP [22m(for Permanent) or [1m‐ [22m(to
102              accept any type).
103
104[1mEXAMPLE[0m
105            dpm‐modifypool  ‐‐poolname  Volatile   ‐‐def_filesize
106100M                  ‐‐groups ‐dteam,ops,+atlas
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108[1mEXIT STATUS[0m
109       This  program  returns  0  if the operation was successful
110or >0 if the
111       operation failed.
112
113[1mSEE ALSO[0m
114       [1mdpm(1)[22m, [1mdpm_modifypool(3)[0m
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118LCG                                 $Date$                   DPM‐
119MODIFYPOOL(1)
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