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## sysstat.ioconf## Copyright (C) 2004, Red Hat, Inc.## Maintained by Sebastien Godard (sysstat [at] orange.fr)## This file gives iostat and sadc a clue about how to find whole# disk devices in /proc/partitions and /proc/diskstats# Authoritative source is: linux/Documentation/devices.txt## line format, general record:# major:name:ctrlpre:ctrlno:devfmt:devcnt:partpre:partcnt:description## major: major # for device# name: base of device name# ctrlpre: string to use in generating controller designators# eg: the c in c0d2p6, decimal formatting implied# '*' means none or irrelevant# ctrlno: which controller of this type is this# devfmt: type of device naming convention# a: alpha: xxa, xxb, ... xxaa, xxab, ... xxzz# x: exception... record contains a specific name# for a specific minor #, stored in the devcnt field# %string: string to use in generating drive designators,# eg: the 'd' in c0d2p6 , decimal formatting implied# d: no special translations (decimal formatting)# devcnt: how many whole devs per major number# partpre: appended to whole dev before part designator# eg. the p in c0d2p6, decimal formatting implied# '*' means none# partcnt: number of partitions per volume# or minor # for exception records# description: informative text## line format, indirect record:# major:base_major:ctrlno[:[desc]]## major: major number of the device# base_major: major number of the template for this type,# 0 for not supported# ctrlno: controller number of this type# desc: controller-specific description# if absent the desc from base_major will be# used in sprintf( buf, desc, ctrlno )1:ram:*:0:d:256:*:1:RAM disks (ram0..ram255)1:initrd:x:250:d:256:*:1:Initial RAM Disk (initrd)#2:0:0:Floppy Devices2:fd:*:0:d:4:*:1:Floppy Devices fd0,fd1,fd2,fd33:hd:*:0:a:2:*:64:IDE - Controller %d22:3:1:33:3:2:34:3:3:56:3:4:57:3:5:88:3:6:89:3:7:90:3:8:91:3:9:#4:0:0:NODEV#5:0:0:NODEV#6:0:0:NODEV7:loop:*:0:d:256:*:1:Loop Devices8:sd:*:0:a:16:*:16:SCSI - Controller %d65:8:1:66:8:2:67:8:3:68:8:4:69:8:5:70:8:6:71:8:7:128:8:8:129:8:9:130:8:10:131:8:11:132:8:12:133:8:13:134:8:14:135:8:15:9:md:*:0:d:256:*:1:Metadisk (Software RAID) devices (md0..md255)#10:0:0:NODEV#11:sr:*:0:d:256:*:1:CDROM - CDROM (sr0..sr255) (deprecated)11:scd:*:0:d:256:*:1:CDROM - CDROM (scd0..scd255)#12:0:0:MSCDEX CD-ROM Callback13:xd:*:0:a:2:*:64:8-bit MFM/RLL/IDE controller (xda, xdb)#14:0:0:BIOS Hard Drive Callback#15:0:0:CDROM - Sony CDU-31A/CDU-33A#16:0:0:CDROM - Goldstar#17:0:0:CDROM - Optics Storage#18:0:0:CDROM - Sanyo19:double:*:0:d:256:*:1:Compressed Disk (double0..double255)#20:0:0:CDROM - Hitachi21:mfm:*:0:a:2:*:64:Acorn MFM Hard Drive (mfma, mfmb)# 22: see IDE, dev 3#23:0:0:CDROM - Mistumi Proprietary#24:0:0:CDROM - Sony CDU-535#25:0:0:CDROM - Matsushita (Panasonic/Soundblaster) #1#26:0:1:CDROM - Matsushita (Panasonic/Soundblaster) #2#27:0:2:CDROM - Matsushita (Panasonic/Soundblaster) #3#28:0:3:CDROM - Matsushita (Panasonic/Soundblaster) #4# 28:0:0:! ACSI (Atari) Disk Not Supported#29:0:0:CDROM - Aztech/Orchid/Okano/Wearnes#30:0:0:CDROM - Philips LMS CM-205#31:0:0:ROM/flash Memory Card#32:0:0:CDROM - Phillips LMS CM-206# 33: See IDE, dev 3# 34: See IDE, dev 3#35:0:0:Slow Memory RAM Disk36:ed:*:0:a:2:*:64:MCA ESDI Hard Disk (eda, edb)#37:0:0:Zorro II Ram Disk#38:0:0:Reserved For Linux/AP+#39:0:0:Reserved For Linux/AP+#40:0:0:Syquest EZ135 Parallel Port Drive#41:0:0:CDROM - MicroSolutions Parallel Port BackPack#42:0:0:For DEMO Use Only43:nb:*:0:d:256:*:1:Network Block devices (nb0..nb255)44:ftl:*:0:a:16:*:16:Flash Translation Layer (ftla..ftlp)45:pd:*:0:a:4:*:16:Parallel Port IDE (pda..pdd)#46:0:0:CDROM - Parallel Port ATAPI47:pf:*:0:d:256:*:1:Parallel Port ATAPI Disk Devices (pf0..pf255)48:rd:/c:0:%d:32:p:8:Mylex DAC960 RAID, Controller %d49:48:1:50:48:2:51:48:3:52:48:4:53:48:5:54:48:6:55:48:7:136:48:8:137:48:9:138:48:10:139:48:11:140:48:12:141:48:13:142:48:14:143:48:15:# 56, 57: see IDE, dev 3:58:lvm:*:0:d:256:*:1:Logical Volume Manager (lvm0..lvm255)#59:0:0:PDA Filesystem Device#60:0:0:Local/Experimental Use#61:0:0:Local/Experimental Use#62:0:0:Local/Experimental Use#63:0:0:Local/Experimental Use#64:0:0:NODEV# 65..71: See SCSI, dev 8:72:ida/:c:0:%d:16:p:16:Compaq Intelligent Drive Array - Controller %d73:72:1:74:72:2:75:72:3:76:72:4:77:72:5:78:72:6:79:72:7:80:i2o/hd:*:0:a:16:*:16:I2O Disk - Controller %d81:80:1:82:80:2:83:80:3:84:80:4:85:80:5:86:80:6:87:80:7:# 88..91: see IDE, dev 3:#92:0:0:PPDD Encrypted Disk#93:0:0:NAND Flash Translation Layer not supported94:dasd:*:0:a:64:*:4:IBM S/390 DASD Block Storage (dasda, dasdb, ...)#95:0:0:IBM S/390 VM/ESA Minidisk#96:0:0:NODEV#97:0:0:CD/DVD packed writing devices not supported98:ubd:*:0:d:256:*:1:User-mode Virtual Block Devices (ubd0..ubd256)#99:0:0:JavaStation Flash Disk#100:0:0:NODEV101:amiraid/ar:*:0:d:16:p:16:AMI HyperDisk RAID (amiraid/ar0 - amiraid/ar15)#102:0:0:Compressed Block Device#103:0:0:Audit Block Device104:cciss:/c:0:%d:16:p:16:HP SA 5xxx/6xxx (cciss) Controller %d105:104:1:106:104:2:107:104:3:108:104:4:109:104:5:110:104:6:111:104:7:112:iseries/vd:*:0:a:32:*:8:IBM iSeries Virtual Disk (.../vda - .../vdaf)#113:0:0:CDROM - IBM iSeries Virtual# 114..159 NODEV120:emcpower:*:0:a:16:*:16:EMC PowerPath Unit %d#160:sx8/:*:0:d:8:p:32:Promise SATA SX8 Unit %d#161:160:1:160:carmel/:*:0:d:8:p:32:Carmel 8-port SATA Disks (carmel/0 - carmel/7)161:160:1:# 162..198 UNUSED180:ub:*:0:a:32:p:8:USB block devices#199:0:0:Veritas Volume Manager (VxVM) Volumes#200:0:0:NODEV#201:0:0:Veritas VxVM Dynamic Multipathing Driver202:xvd:*:0:a:16:p:16:Xen Virtual Block Device# 203..230: UNUSED232:emcpower:*:0:a:16:*:16:EMC PowerPath Unit %d233:232:1:234:232:2:235:232:3:236:232:4:237:232:5:238:232:6:239:232:7:240:232:8:241:232:9:242:232:10:243:232:11:244:232:12:245:232:13:246:232:14:247:232:15:# 240..254: LOCAL/Experimental# 255: reserved for big dev_t expansion