Hi,
What additional IDE controllers are recommended to allow more than 4
devices....
In old pentium VX chipsets I noticed that the machine (Linux 2.0.29 at the
time, or the chipset) couldn't access both busses at the same time making
a mirror hda/hdc very slow...
What is the situation with having multiple IDE interfaces and what cards
are good?
On 10 Feb 1999, Markus Linnala wrote:
>
> Summary: with bleedin edge kernel first process accessing raid
> is struck at R state and after that processes are struc at D
> state. Not always repeatable. Try with bonnie -s 2047.
>
> Kernel is v2.2.2pre2 with 2.2.1.uniform-ide-6.19.patch,
> raid0145-19990128-2.2.0, and Stephen C. Tweedie's
> <[EMAIL PROTECTED]> to enable running
> bonnie at raid. Guess this is not so good.
>
> I noticed problem when I made a script to make new raid with
> differend parameters and run bonnie with different sizes on it.
>
> And to complify the issue, processes are not struck at R state,
> they get some processor power, but seems all processes accessing
> raid are struck. And every process accessing raid is struc at D
> state. ls is struck at getdents.
>
> This has happened 2 times now, first was block size 1k chunk
> size 4k (bonnie -s 1000). And now with block 1k and chunk 64k.
>
> Couple of hours before
> 623 a1 R N 17:36 bonnie -s 2047
>
> Now
> 623 a1 R N 17:40 bonnie -s 2047
> 759 a1 D 0:00 ls -ltr /mnt/raid/
>
> Now I need some help to debug this. Enyone else seeing this?
>
> dmesg
> ------------------------------------------------------------------------
> Linux version 2.2.2 (root@localhost) (gcc version 2.7.2.3) #1 Sun Feb 7 01:19:38 EET
>1999
> Detected 300683455 Hz processor.
> Console: colour VGA+ 80x25
> Allocating 320KB for IO-trace ringbuffer
> Calibrating delay loop... 599.65 BogoMIPS
> Memory: 127712k/131072k available (848k kernel code, 408k reserved, 2068k data, 36k
>init)
> VFS: Diskquotas version dquot_6.4.0 initialized
> CPU: AMD AMD-K6(tm) 3D processor stepping 00
> Checking 386/387 coupling... OK, FPU using exception 16 error reporting.
> Checking 'hlt' instruction... OK.
> POSIX conformance testing by UNIFIX
> PCI: PCI BIOS revision 2.10 entry at 0xfb210
> PCI: Using configuration type 1
> PCI: Probing PCI hardware
> PCI: 00:38 [1106/0586]: Work around ISA DMA hangs (00)
> Activating ISA DMA hang workarounds.
> Linux NET4.0 for Linux 2.2
> Based upon Swansea University Computer Society NET3.039
> NET4: Unix domain sockets 1.0 for Linux NET4.0.
> NET4: Linux TCP/IP 1.0 for NET4.0
> IP Protocols: ICMP, UDP, TCP, IGMP
> Initializing RT netlink socket
> Starting kswapd v 1.5
> Serial driver version 4.27 with no serial options enabled
> ttyS00 at 0x03f8 (irq = 4) is a 16550A
> Real Time Clock Driver v1.09
> Uniform Multi-Platform E-IDE driver Revision: 6.19
> VP_IDE: IDE controller on PCI bus 00 dev 39
> VP_IDE: not 100% native mode: will probe irqs later
> Split FIFO Configuration: 8 Primary buffers, threshold = 1/2
> 8 Second. buffers, threshold = 1/2
> ide0: BM-DMA at 0xc000-0xc007, BIOS settings: hda:DMA, hdb:DMA
> ide0: VIA Bus-Master (U)DMA Timing Config Success
> ide1: BM-DMA at 0xc008-0xc00f, BIOS settings: hdc:DMA, hdd:DMA
> ide1: VIA Bus-Master (U)DMA Timing Config Success
> PDC20246: IDE controller on PCI bus 00 dev 48
> PDC20246: not 100% native mode: will probe irqs later
> PDC20246: ROM enabled at 0xe9000000
> PDC20246: (U)DMA Burst Bit ENABLED Primary PCI Mode Secondary PCI Mode.
> ide2: BM-DMA at 0xd800-0xd807, BIOS settings: hde:DMA, hdf:DMA
> ide3: BM-DMA at 0xd808-0xd80f, BIOS settings: hdg:DMA, hdh:DMA
> keyboard: Too many NACKs -- noisy kbd cable?
> keyboard: Too many NACKs -- noisy kbd cable?
> hda: FUJITSU MPC3032AT, ATA DISK drive
> hdc: IBM-DTTA-351350, ATA DISK drive
> hde: IBM-DTTA-351350, ATA DISK drive
> hdf: IBM-DTTA-351350, ATA DISK drive
> hdg: IBM-DTTA-351350, ATA DISK drive
> hdh: IBM-DTTA-351350, ATA DISK drive
> ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
> ide1 at 0x170-0x177,0x376 on irq 15
> ide2 at 0xc800-0xc807,0xcc06 on irq 10
> ide3 at 0xd000-0xd007,0xd406 on irq 10
> hda: FUJITSU MPC3032AT, 3093MB w/0kB Cache, CHS=785/128/63, UDMA
> hdc: IBM-DTTA-351350, 8063MB w/464kB Cache, CHS=16383/16/63, UDMA
> hde: IBM-DTTA-351350, 8063MB w/464kB Cache, CHS=16383/16/63, UDMA
> hdf: IBM-DTTA-351350, 8063MB w/464kB Cache, CHS=16383/16/63, UDMA
> hdg: IBM-DTTA-351350, 8063MB w/464kB Cache, CHS=16383/16/63, UDMA
> hdh: IBM-DTTA-351350, 8063MB w/464kB Cache, CHS=16383/16/63, UDMA
> Floppy drive(s): fd0 is 1.44M
> FDC 0 is a post-1991 82077
> md driver 0.90.0 MAX_MD_DEVS=256, MAX_REAL=12
> raid5 personality registered
> raid5: measuring checksumming speed
> raid5: using high-speed MMX checksum routine
> pII_mmx : 650.748 MB/sec
> p5_mmx : 574.548 MB/sec
> 8regs : 456.438 MB/sec
> 32regs : 309.372 MB/sec
> using fastest function: pII_mmx (650.748 MB/sec)
> Partition check:
> hda: hda1 hda2 < hda5 hda6 hda7 hda8 >
> hdc: hdc1
> hde: hde1
> hdf: hdf1
> hdg: hdg1
> hdh: hdh1
> autodetecting RAID arrays
> (read) hdc1's sb offset: 13207168 [events: 00000002]
> (read) hde1's sb offset: 13207168 [events: 00000002]
> (read) hdf1's sb offset: 13207168 [events: 00000002]
> (read) hdg1's sb offset: 13207168 [events: 00000002]
> (read) hdh1's sb offset: 13207168 [events: 00000002]
> autorun ...
> considering hdh1 ...
> adding hdh1 ...
> adding hdg1 ...
> adding hdf1 ...
> adding hde1 ...
> adding hdc1 ...
> created md0
> bind<hdc1,1>
> bind<hde1,2>
> bind<hdf1,3>
> bind<hdg1,4>
> bind<hdh1,5>
> running: <hdh1><hdg1><hdf1><hde1><hdc1>
> now!
> hdh1's event counter: 00000002
> hdg1's event counter: 00000002
> hdf1's event counter: 00000002
> hde1's event counter: 00000002
> hdc1's event counter: 00000002
> md0: max total readahead window set to 512k
> md0: 4 data-disks, max readahead per data-disk: 128k
> raid5: device hdh1 operational as raid disk 4
> raid5: device hdg1 operational as raid disk 3
> raid5: device hdf1 operational as raid disk 2
> raid5: device hde1 operational as raid disk 1
> raid5: device hdc1 operational as raid disk 0
> raid5: allocated 5299kB for md0
> raid5: raid level 5 set md0 active with 5 out of 5 devices, algorithm 2
> RAID5 conf printout:
> --- rd:5 wd:5 fd:0
> disk 0, s:0, o:1, n:0 rd:0 us:1 dev:hdc1
> disk 1, s:0, o:1, n:1 rd:1 us:1 dev:hde1
> disk 2, s:0, o:1, n:2 rd:2 us:1 dev:hdf1
> disk 3, s:0, o:1, n:3 rd:3 us:1 dev:hdg1
> disk 4, s:0, o:1, n:4 rd:4 us:1 dev:hdh1
> disk 5, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
> disk 6, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
> disk 7, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
> disk 8, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
> disk 9, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
> disk 10, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
> disk 11, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
> RAID5 conf printout:
> --- rd:5 wd:5 fd:0
> disk 0, s:0, o:1, n:0 rd:0 us:1 dev:hdc1
> disk 1, s:0, o:1, n:1 rd:1 us:1 dev:hde1
> disk 2, s:0, o:1, n:2 rd:2 us:1 dev:hdf1
> disk 3, s:0, o:1, n:3 rd:3 us:1 dev:hdg1
> disk 4, s:0, o:1, n:4 rd:4 us:1 dev:hdh1
> disk 5, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
> disk 6, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
> disk 7, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
> disk 8, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
> disk 9, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
> disk 10, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
> disk 11, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
> md: updating md0 RAID superblock on device
> hdh1 [events: 00000003](write) hdh1's sb offset: 13207168
> hdg1 [events: 00000003](write) hdg1's sb offset: 13207168
> hdf1 [events: 00000003](write) hdf1's sb offset: 13207168
> hde1 [events: 00000003](write) hde1's sb offset: 13207168
> hdc1 [events: 00000003](write) hdc1's sb offset: 13207168
> .
> ... autorun DONE.
> VFS: Mounted root (ext2 filesystem) readonly.
> Freeing unused kernel memory: 36k freed
> Adding Swap: 130748k swap-space (priority -1)
> ------------------------------------------------------------------------
>
> tst_raid
> ------------------------------------------------------------------------
> #!/bin/sh
> # Test raid, Markus Linnala <[EMAIL PROTECTED]> February 8 1999
>
> #set -x
> PATH=$PATH:/sbin:/usr/sbin
>
> DEV=/dev/md0
> MNT=/mnt/raid
> LOGPREFIX=/tmp/BT1_ide_6_19_raid_0_90
>
> export inode block chunk stride DEV MNT LOGPREFIX MKFS_PARAMS
>
> function do_bonnie () {
> #1 2 4 8 16 32 64 100 128 200 256 300 400 500 512 600 700 800 900 1000 1024 1500
>2000 2047
> (
> cd $MNT
> for a in 8 16 32 64 100 200 300 400 500 700 1000 1500 2047
> do
> sync
> bonnie -s $a
> done) | tee $LOGPREFIX.$inode.$block.$chunk
> }
>
> function do_start () {
> echo "Start"
> mkraid --really-force $DEV
> raidstart $DEV
> mke2fs $MKFS_PARAMS $DEV
> mount $DEV $MNT
> }
>
> function do_stop () {
> echo "Stop"
> umount $DEV
> raidstop -a $DEV
> }
>
> function do_raidtab () {
> echo "Raidtab"
> perl -pe 's/\@CS\@/$ENV{chunk}/' < /etc/raidtab.in > /etc/raidtab
> }
>
> function do_main () {
> cd /
>
> for inode in 4096 16384; do
> for block in 1024 2048 4096; do
> for chunk in 16 64 256;do
>
> stride=`expr $chunk \* 1024 \/ $block`
> MKFS_PARAMS="-i $inode -b $block -R stride=$stride"
>
> do_raidtab
> do_start
> do_bonnie
> do_stop
>
> done
> done
> done
> }
>
> do_main
> ------------------------------------------------------------------------
>
> --
> //Markus
>
James ([EMAIL PROTECTED])
My operating system unders~1 long filena~1, and yours?
