From c82f047cfceb479c9c6b56b44c196018af050e45 Mon Sep 17 00:00:00 2001 From: Neil Brown Date: Tue, 7 Jun 2005 23:16:35 +0000 Subject: Initial bitmap support Signed-off-by: Neil Brown --- ReadMe.c | 23 ++++++++++++++++++++--- 1 file changed, 20 insertions(+), 3 deletions(-) (limited to 'ReadMe.c') diff --git a/ReadMe.c b/ReadMe.c index 367bc0b..856a8ef 100644 --- a/ReadMe.c +++ b/ReadMe.c @@ -91,7 +91,7 @@ char Version[] = Name " - v1.11.0 - 11 April 2005\n"; * At the time if writing, there is only minimal support. */ -char short_options[]="-ABCDEFGQhVvbc:i:l:p:m:n:x:u:c:d:z:U:sa::rfRSow1te:"; +char short_options[]="-ABCDEFGQhVXvb::c:i:l:p:m:n:x:u:c:d:z:U:sa::rfRSow1te:"; struct option long_options[] = { {"manage", 0, 0, '@'}, {"misc", 0, 0, '#'}, @@ -104,6 +104,7 @@ struct option long_options[] = { {"grow", 0, 0, 'G'}, {"zero-superblock", 0, 0, 'K'}, /* deliberately no a short_option */ {"query", 0, 0, 'Q'}, + {"examine-bitmap", 0, 0, 'X'}, /* synonyms */ {"monitor", 0, 0, 'F'}, @@ -125,9 +126,11 @@ struct option long_options[] = { {"spare-disks",1,0, 'x'}, {"spare-devices",1,0, 'x'}, {"size", 1, 0, 'z'}, - {"auto", 2, 0, 'a'}, /* also for --assemble */ + {"auto", 1, 0, 'a'}, /* also for --assemble */ {"assume-clean",0,0, 3 }, {"metadata", 1, 0, 'e'}, /* superblock format */ + {"bitmap", 1, 0, 'b'}, + {"bitmap-chunk", 1, 0, 4}, /* For assemble */ {"uuid", 1, 0, 'u'}, @@ -188,6 +191,7 @@ char Help[] = char OptionHelp[] = "Any parameter that does not start with '-' is treated as a device name\n" +"or, for --examine-bitmap, a file name.\n" "The first such name is often the name of an md device. Subsequent\n" "names are often names of component devices." "\n" @@ -205,6 +209,7 @@ char OptionHelp[] = " --create -C : Create a new array\n" " --detail -D : Display details of an array\n" " --examine -E : Examine superblock on an array component\n" +" --examine-bitmap -X: Display the detail of a bitmap file\n" " --monitor -F : monitor (follow) some arrays\n" " --query -Q : Display general information about how a\n" " device relates to the md driver\n" @@ -212,6 +217,7 @@ char OptionHelp[] = /* "\n" " For create or build:\n" +" --bitmap= -b : File to store bitmap in - may pre-exist for --build\n" " --chunk= -c : chunk size of kibibytes\n" " --rounding= : rounding factor for linear array (==chunk size)\n" " --level= -l : raid level: 0,1,4,5,6,linear,mp. 0 or linear for build\n" @@ -224,8 +230,11 @@ char OptionHelp[] = " : insert a missing drive for RAID5.\n" " --auto(=p) -a : Automatically allocate new (partitioned) md array if needed.\n" " --assume-clean : Assume the array is already in-sync. This is dangerous.\n" +" --bitmap-chunk= : chunksize of bitmap in bitmap file (Kilobytes)\n" +" --delay= -d : seconds between bitmap updates\n" "\n" " For assemble:\n" +" --bitmap= -b : File to find bitmap information in\n" " --uuid= -u : uuid of array to assemble. Devices which don't\n" " have this uuid are excluded\n" " --super-minor= -m : minor number to look for in super-block when\n" @@ -280,6 +289,7 @@ char Help_create[] = " other levels.\n" "\n" " Options that are valid with --create (-C) are:\n" +" --bitmap= : Create a bitmap for the array with the given filename\n" " --chunk= -c : chunk size of kibibytes\n" " --rounding= : rounding factor for linear array (==chunk size)\n" " --level= -l : raid level: 0,1,4,5,6,linear,multipath and synonyms\n" @@ -293,6 +303,8 @@ char Help_create[] = " --run -R : insist of running the array even if not all\n" " : devices are present or some look odd.\n" " --readonly -o : start the array readonly - not supported yet.\n" +" --bitmap-chunk= : bitmap chunksize in Kilobytes.\n" +" --delay= -d : bitmap update delay in seconds.\n" "\n" ; @@ -308,10 +320,13 @@ char Help_build[] = " The level may only be 0, raid0, or linear.\n" " All devices must be listed and the array will be started once complete.\n" " Options that are valid with --build (-B) are:\n" +" --bitmap= : file to store/find bitmap information in.\n" " --chunk= -c : chunk size of kibibytes\n" " --rounding= : rounding factor for linear array (==chunk size)\n" " --level= -l : 0, raid0, or linear\n" -" --raid-devices= -n : number of active devices in array\n" +" --raid-devices= -n : number of active devices in array\n" +" --bitmap-chunk= : bitmap chunksize in Kilobytes.\n" +" --delay= -d : bitmap update delay in seconds.\n" ; char Help_assemble[] = @@ -347,6 +362,7 @@ char Help_assemble[] = " and components are determined from the config file.\n" "\n" "Options that are valid with --assemble (-A) are:\n" +" --bitmap= : bitmap file to use wit the array\n" " --uuid= -u : uuid of array to assemble. Devices which don't\n" " have this uuid are excluded\n" " --super-minor= -m : minor number to look for in super-block when\n" @@ -393,6 +409,7 @@ char Help_misc[] = " device relates to the md driver\n" " --detail -D : Display details of an array\n" " --examine -E : Examine superblock on an array component\n" +" --examine-bitmap -X: Display contents of a bitmap file\n" " --zero-superblock : erase the MD superblock from a device.\n" " --run -R : start a partially built array\n" " --stop -S : deactivate array, releasing all resources\n" -- cgit