[linux] OT: Fasttrack S150 SX4

[Slavomir Slizik]

> 
> > nie je dovod aby nevedel - ono sa to transparentne tvari ako jeden disk 
> (/dev/
> > sda) takze je to plnohodnotny bootovatelny raid, musi to vediet bootovat 
> aj v
> > pripade poruchy disku. Katastrofa je akurat ta nemoznost dozvediet sa na 
> dialku
> > ze sa nieco stalo, ale snad bude vediet niekto poradit kto to ma 
> rozchodene aj
> > nie na redhat/suse ...
> 
> No to znie zaujimavo. Ako jeden disk sa to teda tvari bez ovladacov?
> Pretoze si neviem predstavit, ako do GRUB-u alebo LILO-a budem instalovat
> nejaky ovladac. :)
> Pravdaze chcem bootovat z RAID5 pola, aby som mal istotu, ze nastartuje
> pri akejkolvek chybe jedneho disku. Pod akoukolvek chybou myslim aj chybne
> precitane udaje z prveho disku, co moze byt problem pri mirrorovanych
> diskoch.

 no aby som pripomenul, plynule sme presli v diskusii k radicu Adaptec 
Serial ATA RAID 2410SA (alebo 2810), dufam ze stale hovorime o nom a nie o 
tom co je v subjecte :)
 Ten radic ma podporu vo vanilla kerneli, ako Adaptec AACRAID takze nic ine 
netreba do kernelu zavadzat. Pri starte sa to tvari takto:
 
Loading Adaptec I2O RAID: Version 2.4 Build 5go
Detecting Adaptec I2O RAID controllers...
Red Hat/Adaptec aacraid driver (1.1.2-lk2 Apr 20 2005)
AAC0: kernel 4.2.4 build 7348
AAC0: monitor 4.2.4 build 7348
AAC0: bios 4.2.0 build 7348
AAC0: serial c2741bfafaf001
scsi0 : aacraid
Vendor: ADAPTEC Model: System Rev: V1.0
Type: Direct-Access ANSI SCSI revision: 02
Vendor: ADAPTEC Model: Data Rev: V1.0
Type: Direct-Access ANSI SCSI revision: 02
SCSI device sda: 5806080 512-byte hdwr sectors (2973 MB)
sda: Write Protect is off
sda: Mode Sense: 03 00 00 00
SCSI device sda: drive cache: write through
SCSI device sda: 5806080 512-byte hdwr sectors (2973 MB)
sda: Write Protect is off
sda: Mode Sense: 03 00 00 00
SCSI device sda: drive cache: write through
sda: sda1 sda2
Attached scsi removable disk sda at scsi0, channel 0, id 0, lun 0
SCSI device sdb: 4095737856 512-byte hdwr sectors (997506 MB)
sdb: Write Protect is off
sdb: Mode Sense: 03 00 00 00
SCSI device sdb: drive cache: write through
SCSI device sdb: 4095737856 512-byte hdwr sectors (997506 MB)
sdb: Write Protect is off
sdb: Mode Sense: 03 00 00 00
SCSI device sdb: drive cache: write through
sdb: sdb1
Attached scsi removable disk sdb at scsi0, channel 0, id 1, lun 0
Attached scsi generic sg0 at scsi0, channel 0, id 0, lun 0, type 0
Attached scsi generic sg1 at scsi0, channel 0, id 1, lun 0, type 0

 V instalacke Slackwaru je to aj v predkompilovanom kerneli myslim adaptec.s
.
Inak mam to ako RAID5, bootuje sa z toho system (v tom pocitaci nie su ine 
disky, iba tie co su zapojene na ten radic)
V lilo.conf je normalne:
boot = /dev/sda
 Inak co sa tyka tych kvazi-akoze-hardverovych raidov na novych doskach 
(Promise, a pod.) tak nad tym ani neuvazujte to rozchodit, to je proste 
uplna katastrofa - lepsie je v tom pripade spravit si normany softverovy 
raid a je to hadam aj rychlejsie.
 ssl
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