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Commit | Line | Data |
---|---|---|
4a0623f9 AK |
1 | Version 2.01.10 - |
2 | ================================ | |
abe198c0 | 3 | Don't create backup and archive dirs till needed. |
15db9fcf AK |
4 | Reinstate full PV size when removing from VG. |
5 | Support loopfiles for testing. | |
e40d124e | 6 | Tidy lv_segment interface. |
15db9fcf | 7 | pv_segment support. |
66278a80 | 8 | vgchange --physicalextentsize |
90395b8d | 9 | Internal snapshot restructuring. |
69b2cc0e | 10 | Remove unused internal non-persistent snapshot option. |
864de9ce | 11 | Allow offline extension of snapshot volumes. |
367b9cb1 | 12 | Move from 2-step to 3-step on-disk metadata commit. |
864de9ce | 13 | Scan ramdisks too and allow non-O_DIRECT fallback. |
1128f56b | 14 | Annotate, tidy and extend list.h. |
1165258c | 15 | Alignment tidying. |
2b7e4013 | 16 | Make clvmd work around some "bugs" in gulm's node state notifications. |
30bda776 | 17 | Tidy clvmd's SIGHUP handler |
4a0623f9 | 18 | |
37baa586 AK |
19 | Version 2.01.09 - 4th April 2005 |
20 | ================================ | |
0a0f13e6 | 21 | Add --ignorelockingfailure to vgmknodes. |
11270d07 | 22 | clvmd: Don't allow user operations to start until the lvm thread is fully up. |
a478de3d | 23 | clvmd-gulm: set KEEPALIVE on sockets. |
11270d07 | 24 | |
c8f9c82d AK |
25 | Version 2.01.08 - 22nd March 2005 |
26 | ================================= | |
343a8c92 | 27 | Add clustered attribute so vgchange can identify clustered VGs w/o locking. |
e5b836d2 | 28 | Improve detection of external changes affecting internal cache. |
162d85b9 | 29 | Add 'already in device cache' debug message. |
200ef4db | 30 | Add -a to pvdisplay -C. |
0aa8e5be | 31 | Avoid rmdir opendir error messsages when dir was already removed. |
779b7713 | 32 | Tighten signal handlers. |
7e0b7fd0 | 33 | Avoid some compiler warnings. |
e5def0ba | 34 | Additional rename failure error message. |
1cbfe699 | 35 | read/write may be macros. |
02c6d3f2 | 36 | clvmd: don't take out lvm thread lock at startup, it only protects jobs list. |
47de3990 | 37 | |
b9565b40 | 38 | Version 2.01.07 - 8th March 2005 |
4c908521 | 39 | ================================ |
b9565b40 | 40 | Cope with new devices appearing by rescanning /dev if a uuid can't be found. |
8f5d81cb | 41 | Remove DESTDIR from LVM_SHARED_PATH. |
3329bbfd PC |
42 | clvmd fixes: make FDs close-on-exec |
43 | gulm unlocks VG & orphan locks at startup in case they are stale | |
44 | gulm now unlocks VG & orphan locks if client dies. | |
4c908521 | 45 | |
9a56fc81 AK |
46 | Version 2.01.06 - 1st March 2005 |
47 | ================================ | |
aa70fe8b | 48 | Suppress 'open failed' error messages during scanning. |
432cd1e4 | 49 | Option to suppress warnings of file descriptors left open. |
f3b0ea28 | 50 | Fix default value of metadatacopies in documentation (2->1). |
ce1aa2c3 | 51 | Fix clvmd-gulm locking. |
eb3037dd PC |
52 | ./configure --enable-debug now enables debugging code in clvmd. |
53 | Fix clvmd-gulm node up/down code so it actually works. | |
54 | clvmd-gulm now releases locks when shut down. | |
8b307a08 | 55 | |
8e3a97ba AK |
56 | Version 2.01.05 - 18th February 2005 |
57 | ==================================== | |
58 | Static binary invokes dynamic binary if appropriate. | |
a3dfa1c7 | 59 | Make clvmd config check a little more tolerant. |
c9808c32 | 60 | gulm clvmd can now cope with >1 message arriving in a TCP message. |
50e3a3f3 | 61 | |
f1b2dad4 | 62 | Version 2.01.04 - 9th February 2005 |
939a307d | 63 | =================================== |
f1b2dad4 AK |
64 | Add fixed offset to imported pool minor numbers. |
65 | Update binary pathnames in clvmd_init_rhel4. | |
3ef1acee | 66 | lvm2cmd.so should skip the check for open fds. |
421c2a6a | 67 | Remove unused -f from pvmove. |
28b4320c | 68 | Gulm clvmd doesn't report "connection refused" errors. |
d9656543 | 69 | clvmd does a basic config file sanity check at startup. |
ceda2b14 | 70 | Fix potential thread shutdown race in clvmd. |
939a307d | 71 | |
07a2b9f8 | 72 | Version 2.01.03 - 1st February 2005 |
2efec8b2 | 73 | =================================== |
274c88be | 74 | More 64-bit display/report fixes. |
51c2a813 | 75 | More informative startup mesg if can't create /etc/lvm. |
7851b13b | 76 | Fix snapshot device size bug (since 2.01.01). |
c9f9a8b2 | 77 | clvmd announces startup and cluster connection in syslog. |
4e224cf0 | 78 | Gulm clvmd doesn't hang trying to talk to a rebooted node. |
9549da27 | 79 | Gulm clvmd doesn't print cman error on startup. |
2efec8b2 | 80 | |
a918e733 | 81 | Version 2.01.02 - 21st January 2005 |
c44c015a | 82 | =================================== |
eaafeaaa | 83 | Update clvmd_init_rhel4: use lvm.static and don't load dlm. |
ed2799e7 | 84 | Fix some size_t printing. |
894a05ff | 85 | Fix 64 bit xlate consts. |
da73b38d | 86 | Split out pool sptype_names to avoid unused const. |
52f9afec | 87 | Always fail if random id generation fails. |
c44c015a | 88 | Recognise gnbd devices. |
6f4d25ec PC |
89 | Fix clvmd startup bug introduced in cman/gulm amalgamation. |
90 | Improve reporting of node-specific locking errors. | |
c44c015a | 91 | |
5d0b9f47 | 92 | Version 2.01.01 - 19th January 2005 |
34d9b431 | 93 | =================================== |
5d0b9f47 | 94 | Fix clvmd lv_info_by_lvid open_count. |
c45a8a2c | 95 | Store snapshot and origin sizes separately. |
73a9487f | 96 | Update vgcreate man page. |
34d9b431 | 97 | |
3833b9cc AK |
98 | Version 2.01.00 - 17th January 2005 |
99 | =================================== | |
73543ee7 | 100 | Fix vgscan metadata auto-correction. |
e9c761b8 | 101 | Only ask libdevmapper for open_count when we need it. |
bfe848e1 | 102 | Adjust RHEL4 clvmd init script priority. |
5c7fc7c4 | 103 | Enable building of CMAN & GULM versions of clvmd into a single binary |
968b11a9 | 104 | |
b7b17625 AK |
105 | Version 2.00.33 - 7th January 2005 |
106 | ================================== | |
2245e1c4 | 107 | pvcreate wipes first 4 sectors unless given --zero n. |
a057a834 | 108 | gulm clvmd now uses new ccsd key names. |
67443fad | 109 | gulm clvmd now doesn't ignore the first node in cluster.conf |
0d194755 PC |
110 | Improve clvmd failure message if it's already running. |
111 | Allow user to kill clvmd during initialisation. | |
b9fb9b20 | 112 | Fix off-by-one error in cluster_locking that could cause read hangs. |
a057a834 | 113 | |
01a0beed | 114 | Version 2.00.32 - 22nd December 2004 |
158fe3d3 | 115 | ==================================== |
7e9e9502 | 116 | Drop static/dl restriction for now. |
01a0beed | 117 | Fix an error fprintf. |
bc0d0ce0 | 118 | Fix vgdisplay -s. Breaks (undocumented) lvs/pvs/vgs -s instead for now. |
165f49ba | 119 | Fix device reference counting on re-opens. |
f6ab00eb | 120 | Ignore sysfs symlinks when DT_UNKNOWN. |
57b08371 | 121 | Add clvmd init script for RHEL4. |
d46fd67f | 122 | Skip devices that are too small to be PVs. |
8c9a1d6a | 123 | Fix pvchange -x segfault with lvm2-format orphan. |
9ec48461 | 124 | Cope with empty msdos partition tables. |
db1cd377 | 125 | Add CONTRIBUTORS file. |
158fe3d3 | 126 | |
9a2abb82 | 127 | Version 2.00.31 - 12th December 2004 |
6aad6545 | 128 | ==================================== |
9a2abb82 | 129 | Reopen RO file descriptors RW if necessary. |
6aad6545 | 130 | |
c4bb9aa6 | 131 | Version 2.00.30 - 10th December 2004 |
0ef6cc3f | 132 | ==================================== |
09a7dce6 AK |
133 | Additional device-handling debug messages. |
134 | Additional verbosity level -vvvv includes line numbers and backtraces. | |
135 | Verbose messages now go to stderr not stdout. | |
136 | Close any stray file descriptors before starting. | |
137 | Refine partitionable checks for certain device types. | |
138 | Allow devices/types to override built-ins. | |
21c42c7f | 139 | Fix lvreduce man page .i->.I |
80b04895 | 140 | Fix vgsplit man page title. |
db7e9905 | 141 | Fix clvmd man makefile. |
39de4a2a AK |
142 | Extend dev_open logging. |
143 | Make clvmd_fix_conf.sh UNDOable. | |
0ef6cc3f | 144 | |
66f04084 AK |
145 | Version 2.00.29 - 27th November 2004 |
146 | ==================================== | |
147 | xlate compilation fix. | |
148 | ||
bbdab3fc | 149 | Version 2.00.28 - 27th November 2004 |
a266258f | 150 | ==================================== |
bbdab3fc | 151 | Fix partition table & md signature detection. |
a266258f AK |
152 | Minor configure/makefile tidy. |
153 | Export version.h from tools for clvmd. | |
154 | ||
2e605167 | 155 | Version 2.00.27 - 24th November 2004 |
a614641a | 156 | ==================================== |
c3a4c63c | 157 | Trap large memory allocation requests. |
2e605167 | 158 | Fix to partition table detection code. |
7f1e8db7 | 159 | Improve filter debug mesgs. |
838ebb83 | 160 | Make clvmd_fix_conf.sh UNDOable |
a614641a | 161 | |
d528aaa6 AK |
162 | Version 2.00.26 - 23rd November 2004 |
163 | ==================================== | |
bd46a496 | 164 | Improve pool debugging stats. |
985ef461 | 165 | Detect partition table signature. |
5ab925de | 166 | pvcreate wipes md superblocks. (With --uuid or --restorefile it prompts.) |
b2dd0bb1 | 167 | Separate out md superblock detection code. |
0ec78e98 AK |
168 | Prevent snapshot origin resizing. |
169 | Improve a vgremove error message. | |
fcac0642 AK |
170 | Update some man pages. |
171 | Allow y/n with -ae args (exclusive activation). | |
cb8920e6 | 172 | Fixes to lvcreate vgname parsing. |
56f5c04d | 173 | Fix dm_name string size calculation. |
bfd4b014 | 174 | Improve clvmd error reporting during startup. |
cf541774 | 175 | Make clvmd cope with large gaps in node numbers IDs. |
bfd4b014 | 176 | Make clvmd initialisation cope better with debugging output. |
63bea03e | 177 | Tidy clvmd socket callbacks so all work happens outside main loop. |
3d4159b6 | 178 | clvmd -V now displays lvm version too. |
b1098701 | 179 | Add optional gulm build for clvmd |
b44dc25e | 180 | |
c3c9d9b0 | 181 | Version 2.00.25 - 29th September 2004 |
f2b2f485 | 182 | ===================================== |
be495a46 AK |
183 | Fix return code from rm_link for vgmknodes. |
184 | Make clvmd LV hash table thread-safe. | |
c3c9d9b0 AK |
185 | Fix clvmd locking so it will lock out multiple users on the same node. |
186 | Fix clvmd VG locking to it can cope with multiple VG locks. | |
187 | Remove spurious trailing dot in lvreduce man page. | |
188 | Fix vgremove locking. | |
f2b2f485 | 189 | |
f663e437 | 190 | Version 2.00.24 - 16th September 2004 |
5b3d93c8 | 191 | ===================================== |
2b176f90 | 192 | Fix pool_empty so it really does empty the memory pool. |
c4ddb31a | 193 | Rename old segtypes files to segtype. |
e26c4fd2 AK |
194 | Some fixes to memory debugging code. |
195 | Exclude internal commands formats & segtypes from install. | |
5b3d93c8 | 196 | |
47ded66e AK |
197 | Version 2.00.23 - 15th September 2004 |
198 | ===================================== | |
7f64c8e5 | 199 | Export dm name build & split functions. |
60bd7179 | 200 | Use O_NOATIME on devices if available. |
19d1e710 | 201 | Write log message when each segtype/format gets initialised. |
156dd4f1 | 202 | New commands 'segtypes' and 'formats'. |
17d1ae7e | 203 | Suppress pvmove abort message in test mode. |
b9ade4bc | 204 | Improve pvcreate/remove device not found error message. |
00b47204 | 205 | Allow pvmove to move data within the same PV. |
05503c5e | 206 | Describe how pvmove works on man page. |
68eb9e3b | 207 | Test for incompatible format/segtype combinations in lv_extend. |
075ab744 PC |
208 | Fix lvchange example on man page. |
209 | ||
6e047bb5 AK |
210 | Version 2.00.22 - 3rd September 2004 |
211 | ==================================== | |
b588726e | 212 | Fix /dev/vgname perms. |
f15c75cb AK |
213 | Restructure xlate.h. |
214 | Add clvmd man page. | |
9c2f42bd | 215 | |
311cea83 AK |
216 | Version 2.00.21 - 19th August 2004 |
217 | ================================== | |
218 | Update cnxman-socket.h from cman. | |
acac21c4 | 219 | Recognise iseries/vd devices. |
cab8ea7c | 220 | Use 'make install_cluster' to install cluster extensions only. |
cf076dd3 | 221 | Cope with DT_UNKNOWN in sysfs. |
392b28ec AK |
222 | Fix extents_moved metadata size comment. |
223 | Remove duplicate line in pvremove help text. | |
224 | Support variable mirror region size. | |
225 | Support PE ranges in pvmove source PV. | |
226 | Fixes to as-yet-unused LV segment splitting code. | |
eabaa339 | 227 | Change alloc_areas to pe_ranges and allow suppression of availability checks. |
a303dcde | 228 | Add dev_size column to pvs. |
5fd24a89 | 229 | Add report columns for in-kernel device number. |
3b55d300 | 230 | |
ad6254c5 AK |
231 | Version 2.00.20 - 3 July 2004 |
232 | ============================= | |
233 | More autoconf fixes. | |
8bad0339 | 234 | Fix device number handling for 2.6 kernels. |
8630c7fb | 235 | |
8ce0cbda | 236 | Version 2.00.19 - 29 June 2004 |
2e15e5e4 | 237 | ============================== |
8ce0cbda AK |
238 | Reduce severity of setlocale failure message. |
239 | Recognise argv[0] "initrd-lvm" (pld-linux). | |
240 | Make -O2 configurable. | |
80992638 AK |
241 | Added --disable-selinux to configure script. |
242 | LD_FLAGS->LDFLAGS & LD_DEPS->LDDEPS in configure script. | |
243 | Add init_debug to clvmd. | |
2e15e5e4 | 244 | |
d3c8211f AK |
245 | Version 2.00.18 - 24 June 2004 |
246 | ============================== | |
88be836f | 247 | Fix vgchange activation. |
d3c8211f AK |
248 | Add cluster support. |
249 | ||
809fae91 AK |
250 | Version 2.00.17 - 20 June 2004 |
251 | ============================== | |
252 | configure --enable-fsadm to try out fsadm. fsadm is not tested yet. | |
c29d2465 | 253 | Display all filtered devices, not just PVs, with pvs -a. |
01c263e9 | 254 | Fix sync_dir() when no / in filename |
8d267798 | 255 | vgcfgbackup -f accepts template with %s for VG name. |
374df1cf | 256 | Extend hash functions to handle non-null-terminated data. |
b86ef8e2 | 257 | Add local activation support. |
b7d0982a | 258 | Tidy relative paths in makefile includes. |
1a9ea74d | 259 | fsadm support for fsck and resizing - needs testing. |
d8ac0fbc | 260 | Add read-only GFS pool support. |
8c670f83 | 261 | Add lvm2create_initrd script from http://poochiereds.net/svn/lvm2/ |
30bab85b | 262 | Fix rounding of large diplayed sizes. |
7d36b514 | 263 | Suppress decimal point when using units of sectors/bytes. |
abaf083d | 264 | Additional kernel target checks before pvmove & snapshot creation. |
2ea0f30f | 265 | Add i2o_block. |
abaf083d | 266 | |
ea556d1f | 267 | Version 2.00.16 - 24 May 2004 |
25579907 | 268 | ============================= |
bfa258b3 | 269 | Set area_count within alloc_lv_segment. |
7f0dc9c4 | 270 | Remove error labels from lvresize. |
199fa12a | 271 | Fix a pvs error path. |
36cfd887 | 272 | xxchange -ae for exclusive activation. |
29e94d95 | 273 | Don't return non-zero status if there aren't any volume groups. |
a0a23eff AK |
274 | Add --alloc argument to tools. |
275 | Rename allocation policies to contiguous, normal, anywhere, inherit. | |
276 | nextfree becomes normal; anywhere isn't implemented yet. | |
277 | LV inherits allocation policy from VG. Defaults: LV - inherit; VG - normal | |
278 | Additional status character added to vgs to indicate allocation policy. | |
b61702ce | 279 | Add reset_fn to external_locking. |
e0a86d8c AK |
280 | Ensure presence of virtual targets before attempting activating. |
281 | Attempt to fix resizing of snapshot origins. | |
241913fe | 282 | Restructure lvresize, bringing it closer to lvcreate. |
6925cbe6 | 283 | A quick sanity check on vg_disk struct when read in. More checks needed. |
ff4b8b64 | 284 | Only include visible LVs in active/open counts. |
1832f310 AK |
285 | Add virtual segment types, zero and error. A large sparse device can be |
286 | constructed as a writeable snapshot of a large zero segment. | |
287 | Add --type to lvcreate/resize. | |
1d2ebf62 AK |
288 | Push lv_create & alloc policy up to tool level. |
289 | Fix pvdisplay return code. | |
e3adcd79 | 290 | Detect invalid LV names in arg lists. |
0e3d9452 AK |
291 | Reporting uses line-at-a-time output. |
292 | lvm2 format sets unlimited_vols format flag. | |
ea601b75 AK |
293 | Internal-only metadata flag support. |
294 | Basic checking for presence of device-mapper targets. | |
cb919290 | 295 | Separate out polldaemon. |
23289e6d AK |
296 | Revise internal locking semantics. |
297 | Move find_pv_by_name to library. | |
0b2b87b7 AK |
298 | Rename move->copy. |
299 | Add devices to segments report. | |
4922197a AK |
300 | Begin separating out segment code. There's a lot of change here. |
301 | Compress any (obsolete) long LVM1 pvids encountered. | |
25579907 AK |
302 | Support for tagged config files. |
303 | Don't abort operations if selinux present but disabled. | |
304 | Fix typo in configure which left HAVE_LIBDL unset. | |
305 | ||
a38df97f AK |
306 | Version 2.00.15 - 19 Apr 2004 |
307 | ============================= | |
308 | configure --with-owner= --with-group= to avoid -o and -g args to 'install' | |
309 | ||
96185e9c AK |
310 | Version 2.00.14 - 16 Apr 2004 |
311 | ============================= | |
312 | Use 64-bit file functions by default. | |
313 | ||
01c6121b | 314 | Version 2.00.13 - 16 Apr 2004 |
121c5c06 | 315 | ============================= |
01c6121b AK |
316 | Set devices/md_component_detection = 1 to ignore devices containing md |
317 | superblocks. [Luca Berra] | |
121c5c06 AK |
318 | Ignore error setting selinux file context if fs doesn't support it. |
319 | ||
a218a29c AK |
320 | Version 2.00.12 - 14 Apr 2004 |
321 | ============================= | |
4563e036 AK |
322 | Install a default lvm.conf into /etc/lvm if there isn't one already. |
323 | Allow different installation dir for lvm.static (configure --staticdir=) | |
324 | Fix inverted selinux error check. | |
325 | Recognise power2 in /proc/devices. | |
326 | Fix counting in lvs_in_vg_opened. [It ignored devices open more than once.] | |
327 | ||
e5b28125 AK |
328 | Version 2.00.11 - 8 Apr 2004 |
329 | ============================ | |
330 | Set fallback_to_lvm1 in lvm.conf (or configure --enable-lvm1_fallback) | |
331 | to run lvm1 binaries if running a 2.4 kernel without device-mapper. | |
332 | ||
0d0b3357 | 333 | Version 2.00.10 - 7 Apr 2004 |
35030bb0 AK |
334 | ============================ |
335 | More fixes for static build. | |
0d0b3357 AK |
336 | Add basic selinux support. |
337 | Fix sysfs detection. | |
35030bb0 | 338 | |
6b493d07 AK |
339 | Version 2.00.09 - 31 Mar 2004 |
340 | ============================= | |
cd242223 AK |
341 | Update copyright notices for Red Hat. |
342 | Fix vgmknodes to remove dud /dev/mapper entries. (libdevmapper update reqd). | |
343 | Add LVM1-style colon output to vgdisplay. | |
344 | lvchange --refresh to reload active LVs. | |
345 | Add string display to memory leak dump. | |
346 | Add locking flags & memlock option. | |
347 | Add list_versions to library. | |
348 | Ignore open hidden LVs when checking if deactivation is OK. | |
349 | Suppress move percentage when device inactive. | |
350 | Add lv_info_by_lvid. | |
351 | Various tidy-ups to the build process. | |
352 | Rebaseline internal verbose level. | |
353 | Add --nolocking option for read operations if locking is failing. | |
354 | Add option to compile into a library. | |
355 | When compiled without libdevmapper, only print warning message once. | |
356 | Fix lvreduce PV extent calculations. | |
357 | Fix DESTDIR to work with configure path overrides. | |
358 | Always use / as config file separator & rename internal config file variables. | |
359 | Add support for tagging PV/VG/LVs and hosts. | |
360 | Fix rare bug in recognition of long cmdline argument forms. | |
361 | Add basic internationalisation infrastructure. | |
362 | Don't recurse symlinked dirs such as /dev/fd on 2.6 kernels. | |
363 | Update autoconf files. | |
364 | Add sysfs block device filtering for 2.6 kernels. | |
365 | Update refs for move to sources.redhat.com. | |
366 | ||
f74d51d9 AK |
367 | Friday 14th November 2003 |
368 | ========================= | |
369 | Some bug fixes & minor enhancements, including: | |
370 | Backwards compatibility with LVM1 metadata improved. | |
371 | Missing man pages written. | |
372 | Tool error codes made more consistent. | |
373 | vgmknodes written. | |
374 | O_DIRECT can be turned off if it doesn't work in your kernel. | |
b2bb7264 | 375 | dumpconfig to display the active configuration file |
f74d51d9 AK |
376 | |
377 | You need to update libdevmapper before using 'vgmknodes' or 'vgscan --mknodes'. | |
378 | If your root filesystem is on an LV, you should run one of those two | |
379 | commands to fix up the special files in /dev in your real root filesystem | |
380 | after finishing with your initrd. Also, remember you can use | |
381 | 'vgchange --ignorelockingfailure' on your initrd if the tool fails because | |
382 | it can't write a lock file to a read-only filesystem. | |
383 | ||
541f8753 AK |
384 | Wednesday 30th April 2003 |
385 | ========================= | |
386 | A pvmove implementation is now available for the new metadata format. | |
387 | ||
388 | When running a command that allocates space (e.g. lvcreate), you can now | |
389 | restrict not only which disk(s) may be used but also the Physical Extents | |
390 | on those disks. e.g. lvcreate -L 10 vg1 /dev/hda6:1000-2000:3000-4000 | |
391 | ||
392 | ||
393 | Monday 18th November 2002 | |
5a52dca9 AK |
394 | ======================== |
395 | ||
396 | The new format of LVM metadata is ready for you to test! | |
397 | We expect it to be more efficient and more robust than the original format. | |
398 | It's more compact and supports transactional changes and replication. | |
399 | Should things go wrong on a system, it's human-readable (and editable). | |
400 | ||
401 | Please report any problems you find to the mailing list, | |
402 | linux-lvm@sistina.com. The software has NOT yet been thoroughly | |
403 | tested and so quite possibly there'll still be some bugs in it. | |
404 | Be aware of the disclaimer in the COPYING file. | |
405 | ||
406 | While testing, we recommend turning logging on in the configuration file | |
407 | to provide us with diagnostic information: | |
408 | log { | |
409 | file="/tmp/lvm2.log" | |
541f8753 | 410 | level=7 |
5518374b | 411 | activation=1 |
5a52dca9 AK |
412 | } |
413 | ||
414 | You should schedule regular backups of your configuration file and | |
415 | metadata backups and archives (normally kept under /etc/lvm). | |
416 | ||
417 | Please read docs/example.conf and "man lvm.conf" to find out more about | |
418 | the configuration file. | |
419 | ||
420 | To convert an existing volume group called vg1 to the new format using | |
421 | the default settings, use "vgconvert -M2 vg1". See "man vgconvert". | |
422 | ||
423 | -M (or --metadatatype in its long form) is a new flag to indicate which | |
424 | format of metadata the command should use for anything it creates. | |
425 | Currently, the valid types are "lvm1" and "lvm2" and they can be | |
426 | abbreviated to "1" and "2" respectively. The default value for this | |
427 | flag can be changed in the global section in the config file. | |
428 | ||
429 | Backwards-compatible support for the original LVM1 metadata format is | |
430 | maintained, but it can be moved into a shared library or removed | |
431 | completely with configure's --with-lvm1 option. | |
432 | ||
433 | Under LVM2, the basic unit of metadata is the volume group. Different | |
434 | volume groups can use different formats of metadata - vg1 could use | |
435 | the original LVM1 format while vg2 used the new format - but you can't | |
436 | mix formats within a volume group. So to add a PV to an LVM2-format | |
437 | volume group you must run "pvcreate -M2" on it, followed by "vgextend". | |
438 | ||
439 | With LVM2-format metadata, lvextend will let you specify striping | |
440 | parameters. So an LV could consist of two or more "segments" - the | |
441 | first segment could have 3 stripes while the second segment has just 2. | |
442 | ||
443 | LVM2 maintains a backup of the current metadata for each volume group | |
444 | in /etc/lvm/backup, and puts copies of previous versions in | |
445 | /etc/lvm/archive. "vgcfgbackup" and "vgcfgrestore" can be used to | |
446 | create and restore from these files. If you fully understand what | |
447 | you're doing, metadata can be changed by editing a copy of a current | |
448 | backup file and using vgcfgrestore to reload it. | |
449 | ||
450 | Please read the pvcreate man page for more information on the new | |
451 | format for metadata. | |
452 | ||
453 | All tools that can change things have a --test flag which can be used | |
454 | to check the effect of a set of cmdline args without really making the | |
455 | changes. | |
456 | ||
457 | ||
458 | What's not finished? | |
459 | ==================== | |
460 | The internal cache. If you turn on debugging output you'll see lots of | |
914c9723 | 461 | repeated messages, many of which will eventually get optimised out. |
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462 | |
463 | --test sometimes causes a command to fail (e.g. vgconvert --test) even | |
464 | though the real command would work: again, fixing this is waiting for | |
465 | the work on the cache. | |
466 | ||
467 | Several of the tools do not yet contain the logic to handle full | |
468 | recovery: combinations of pvcreate and vgcfgrestore may sometimes be | |
469 | needed to restore metadata if a tool gets interrupted or crashes or | |
470 | finds something unexpected. This applies particularly to tools that | |
471 | work on more than one volume group at once (e.g. vgsplit). | |
472 | ||
473 | Display output. Some metadata information cannot yet be displayed. | |
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474 | |
475 | Recovery tools to salvage "lost" metadata directly from the disks: | |
476 | but we hope the new format will mean such tools are hardly ever needed! | |
477 |