Here ya Go! LDEV : 1 -- (MPEXL_SYSTEM_VOLUME_SET:MEMBER1) Device | 16777200 | 9879264 ( 59%) | 6897936 ( 41%) | Permanent | 12582864 ( 75%) | 7844768 ( 47%) | 4738096 ( 28%) | Transient | 12582864 ( 75%) | 2034496 ( 12%) | 6897936 ( 41%) | LDEV : 2 -- (MPEXL_SYSTEM_VOLUME_SET:MEMBER2) Device | 25165808 | 14591312 ( 58%) | 10574496 ( 42%) | Permanent | 18874352 ( 75%) | 11828272 ( 47%) | 7046080 ( 28%) | Transient | 18874352 ( 75%) | 2763040 ( 11%) | 10574496 ( 42%) | LDEV : 3 -- (MPEXL_SYSTEM_VOLUME_SET:MEMBER3) Device | 25165808 | 14562816 ( 58%) | 10602992 ( 42%) | Permanent | 18874352 ( 75%) | 11828896 ( 47%) | 7045456 ( 28%) | Transient | 18874352 ( 75%) | 2733920 ( 11%) | 10602992 ( 42%) | LDEV : 4 -- (MPEXL_SYSTEM_VOLUME_SET:MEMBER4) Device | 25165808 | 14496848 ( 58%) | 10668960 ( 42%) | Permanent | 18874352 ( 75%) | 12113200 ( 48%) | 6761152 ( 27%) | Transient | 18874352 ( 75%) | 2383648 ( 9%) | 10668960 ( 42%) | plus from sysgen LDEV: 1 DEVNAME: OUTDEV: 0 MODE: ID: HPDARRAY RSIZE: 128 DEVTYPE: DISC PATH: 0/8/0/0.6.0 MPETYPE: 4 MPESUBTYPE: 2 CLASS: DISC SPOOL LDEV: 2 DEVNAME: OUTDEV: 0 MODE: ID: HPDARRAY RSIZE: 128 DEVTYPE: DISC PATH: 0/8/0/0.6.1 MPETYPE: 4 MPESUBTYPE: 2 CLASS: DISC SPOOL LDEV: 3 DEVNAME: OUTDEV: 0 MODE: ID: HPDARRAY RSIZE: 128 DEVTYPE: DISC PATH: 0/8/0/0.6.2 MPETYPE: 4 MPESUBTYPE: 2 CLASS: DISC SPOOL LDEV: 4 DEVNAME: OUTDEV: 0 MODE: ID: HPDARRAY RSIZE: 128 DEVTYPE: DISC PATH: 0/8/0/0.6.3 MPETYPE: 4 MPESUBTYPE: 2 CLASS: DISC SPOOL The 40 18Gb disks are clearly visible and are not encased in AutoRaid or Nike, hence is must be software. Particularly since dstat all looks like 30-ST318452LC MASTER-MD MEMBER1 set name 31-ST318452LC MEMBER-MD MEMBER2 removed 32-ST318452LC MEMBER-MD MEMBER3 to shield 33-ST318452LC MEMBER-MD MEMBER4 the guilty 34-ST318452LC MEMBER-MD MEMBER5 35-ST318452LC MEMBER-MD MEMBER6 > You have not shown that ldevs 1 thru 4 are indeed behaving in raid 5 mode. > > (DISCFREE C output, assuming all six 9gb drives are allocated to 4 luns, > would demonstrate that) > > In any case, assuming that they are operating in raid5 mode, that alone > could suggest a poor choice for ldev 1. > > Generally speaking, RAID5 is a poor choice for optimum performance on a HP3000. > > Of course this is a generalized statement, and, as always, your mileage may > vary. > > With the AUTORAID12H, you can ensure RAID1 operation by configuring 50% or > less of the available total disk space available among up to 8 luns (or ldevs). > > You did not indicate what comprises your RAID 1 disks? > > Software mirroring, AUTORAID, or NIKE? > > > At 03:05 PM 2002-10-30, Paul Courry wrote: > >System: > >N-class 550 4 way > >16Gb RAM > >main app is Ecometry software > >40 18Gb drives in a Raid 1 configuration for production data > >AutoRaid with 6 9Gb drives showing as 4 drives in sysgen (I believe this is a > >raid 5 config discfree shows > > > >----------------------------------------------------------------------------- -- > >LDEV : 1 -- (MPEXL_SYSTEM_VOLUME_SET:MEMBER1) > > > >LARGEST FREE AREA: 1192336 TOTAL FREE SPACE: 6720256 > > > > 0 BLOCK(S) OF 1- 9 CONTIG. SECTORS = 0 FREE > > SECTORS. 0% > > 2200 BLOCK(S) OF 10- 99 CONTIG. SECTORS = 95712 FREE > > SECTORS. 1% > > 2745 BLOCK(S) OF 100- 999 CONTIG. SECTORS = 809424 FREE > > SECTORS. 12% > > 470 BLOCK(S) OF 1000- 9999 CONTIG. SECTORS = 1179648 FREE > > SECTORS. 18% > > 57 BLOCK(S) OF 10000- 99999 CONTIG. SECTORS = 1201984 FREE > > SECTORS. 18% > > 9 BLOCK(S) OF 100000-AND UP CONTIG. SECTORS = 3433488 FREE > > SECTORS. 51% > > > >----------------------------------------------------------------------------- -- > >LDEV : 2 -- (MPEXL_SYSTEM_VOLUME_SET:MEMBER2) > > > >LARGEST FREE AREA: 1665760 TOTAL FREE SPACE: 10096240 > > > > 0 BLOCK(S) OF 1- 9 CONTIG. SECTORS = 0 FREE > > SECTORS. 0% > > 3482 BLOCK(S) OF 10- 99 CONTIG. SECTORS = 152736 FREE > > SECTORS. 2% > > 4352 BLOCK(S) OF 100- 999 CONTIG. SECTORS = 1343616 FREE > > SECTORS. 13% > > 744 BLOCK(S) OF 1000- 9999 CONTIG. SECTORS = 1750752 FREE > > SECTORS. 17% > > 79 BLOCK(S) OF 10000- 99999 CONTIG. SECTORS = 1955120 FREE > > SECTORS. 19% > > 13 BLOCK(S) OF 100000-AND UP CONTIG. SECTORS = 4894016 FREE > > SECTORS. 48% > > > >----------------------------------------------------------------------------- -- > >LDEV : 3 -- (MPEXL_SYSTEM_VOLUME_SET:MEMBER3) > > > >LARGEST FREE AREA: 1747904 TOTAL FREE SPACE: 10098224 > > > > 0 BLOCK(S) OF 1- 9 CONTIG. SECTORS = 0 FREE > > SECTORS. 0% > > 3260 BLOCK(S) OF 10- 99 CONTIG. SECTORS = 142192 FREE > > SECTORS. 1% > > 4482 BLOCK(S) OF 100- 999 CONTIG. SECTORS = 1375792 FREE > > SECTORS. 14% > > 752 BLOCK(S) OF 1000- 9999 CONTIG. SECTORS = 1671760 FREE > > SECTORS. 17% > > 64 BLOCK(S) OF 10000- 99999 CONTIG. SECTORS = 1454528 FREE > > SECTORS. 14% > > 14 BLOCK(S) OF 100000-AND UP CONTIG. SECTORS = 5453952 FREE > > SECTORS. 54% > > > >----------------------------------------------------------------------------- -- > >LDEV : 4 -- (MPEXL_SYSTEM_VOLUME_SET:MEMBER4) > > > >LARGEST FREE AREA: 1902144 TOTAL FREE SPACE: 10159328 > > > > 0 BLOCK(S) OF 1- 9 CONTIG. SECTORS = 0 FREE > > SECTORS. 0% > > 3107 BLOCK(S) OF 10- 99 CONTIG. SECTORS = 137232 FREE > > SECTORS. 1% > > 4425 BLOCK(S) OF 100- 999 CONTIG. SECTORS = 1521328 FREE > > SECTORS. 15% > > 1169 BLOCK(S) OF 1000- 9999 CONTIG. SECTORS = 2595600 FREE > > SECTORS. 26% > > 30 BLOCK(S) OF 10000- 99999 CONTIG. SECTORS = 579216 FREE > > SECTORS. 6% > > 14 BLOCK(S) OF 100000-AND UP CONTIG. SECTORS = 5325952 FREE > > SECTORS. 52% > > > >----------------------------------------------------------------------------- -- > > > >Would someone care to explain to me (let me play dumb) why Autoraid is a poor > >choice for the system volume set? > > > >Thanks! > > > >Paul > >Courry > > > >* To join/leave the list, search archives, change list settings, * > >* etc., please visit http://raven.utc.edu/archives/hp3000-l.html * > > ------------------------------------------------------------------------------ ------------------- > Gilles Schipper > GSA Inc. > HP System Administration Specialists > 300 John Street, Box 87651 Thornhill, ON Canada L3T 7R4 > Voice: 905.889.3000 Fax: 905.889.3001 > email: [log in to unmask] web: http://www.gsainc.com > ------------------------------------------------------------------------------ ------------------- > > * To join/leave the list, search archives, change list settings, * > * etc., please visit http://raven.utc.edu/archives/hp3000-l.html * * To join/leave the list, search archives, change list settings, * * etc., please visit http://raven.utc.edu/archives/hp3000-l.html *