hdparm allows you to pass parameters to the hard drive... :)
Things that (for example) turn on or off:
DMA
Multi sector IO
Standby Timeouts
PIO mode
DMA mode
Benchmarking
etc...
Some things work great. Some depend on the drive/controller you have, and
some seem like there're just there to teach people to RTFM.
On a desktop, go nuts playing with them. On a server... Give your head a
shake for buying IDE drives, but after that, reliability is more important
than performance (generally), so accept that it'll be slower, but don't mess
with things. "This will corrupt your filesystem, and impregnate your pet
fish" type messages are all through any help file you will find. (be it Man
pages, or hdparm -h).
In any case, if you didn't mess with it, it won't be the cause of your
problems.
Kev.
----- Original Message -----
From: "J. Rafael S�nchez" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Friday, September 27, 2002 11:59 AM
Subject: Re: (clug-talk) How do you fsck the root partition?
> Actually no. I'm not sure if I fully understand what hdparm does, even
after
> looking at the manpages. So I would say the answer is no, I did not pass
the
> drive any parameter. At least that I'm aware of.
>
> Thanks,
>
> Rafael.
>
> ----- Original Message -----
> From: "Kevin Anderson" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Friday, September 27, 2002 11:15 AM
> Subject: Re: (clug-talk) How do you fsck the root partition?
>
>
> > By any chance, did you pass the IDE drive any parameters through hdparm?
> >
> > I'm TOLD it'll screw up data if you play too much. Personally, I just
> turn
> > on DMA.
> >
> > Kev.
> >
> >
> > ----- Original Message -----
> > From: "J. Rafael S�nchez" <[EMAIL PROTECTED]>
> > To: <[EMAIL PROTECTED]>
> > Sent: Friday, September 27, 2002 10:58 AM
> > Subject: (clug-talk) How do you fsck the root partition?
> >
> >
> > > Hi all,
> > >
> > > Thanks in advance for any attention you lend to this request for help.
> > > How do you file-system-check the root partition (/) when it appears
that
> > > it's always mounted even in single-mode?
> > >
> > > The reason I'm asking this question is that a day and a half ago, I
> > replaced
> > > the power supply on one of my servers. I had a master and a slave ide
> > disks
> > > (and other scsi ones). I removed the slave one because it was not even
> > > mounted. Twelve hours later, it starting acting kind of funny. I
> > discovered
> > > that noone could login to the system because /etc/exports was there
but
> > the
> > > system was not exporting any file systems.
> > >
> > > When I looked at the /etc/exports file, there was a bunch or junk at
the
> > > end, like @ signs and stuff. Luckily I had a backup of it to replace
it.
> > > There was another configuration file which showed the same behaviour,
> > namely
> > > /etc/printcap. Again I had a backup copy to use.
> > >
> > > Things seem to be normal on the surface, except that I'm getting some
> > error
> > > messages.Here's some of them from dmesg:
> > > ================start==========
> > > >dev 03:01 blksize=1024 blocknr=1701999988 sector=-890967320 size=1024
> > > count=1
> > > EXT2-fs error (device ide0(3,1)): ext2_readdir: directory #48219
> contains
> > a
> > > hole at offset 1768684544
> > > attempt to access beyond end of device
> > > 03:01: rw=0, want=1701999989, limit=265041
> > > dev 03:01 blksize=1024 blocknr=1701999988 sector=-890967320 size=1024
> > > count=1
> > > EXT2-fs error (device ide0(3,1)): ext2_readdir: directory #48219
> contains
> > a
> > > hole at offset 1768685568
> > > attempt to access beyond end of device
> > > 03:01: rw=0, want=1701999989, limit=265041
> > > dev 03:01 blksize=1024 blocknr=1701999988 sector=-890967320 size=1024
> > > count=1
> > > EXT2-fs error (device ide0(3,1)): ext2_readdir: directory #48219
> contains
> > a
> > > hole at offset 1768686592
> > > attempt to access beyond end of device
> > > 03:01: rw=0, want=1701999989, limit=265041
> > > dev 03:01 blksize=1024 blocknr=1701999988 sector=-890967320 size=1024
> > > count=1
> > > EXT2-fs error (device ide0(3,1)): ext2_readdir: directory #48219
> contains
> > a
> > > hole at offset 1768687616
> > > attempt to access beyond end of device
> > > 03:01: rw=0, want=1701999989, limit=265041
> > > dev 03:01 blksize=1024 blocknr=1701999988 sector=-890967320 size=1024
> > > count=1
> > > EXT2-fs error (device ide0(3,1)): ext2_readdir: directory #48219
> contains
> > a
> > > hole at offset 1768688640
> > > attempt to access beyond end of device
> > > 03:01: rw=0, want=1701999989, limit=265041
> > > dev 03:01 blksize=1024 blocknr=1701999988 sector=-890967320 size=1024
> > > count=1
> > > EXT2-fs error (device ide0(3,1)): ext2_readdir: directory #48219
> contains
> > a
> > > hole at offset 1768689664
> > > attempt to access beyond end of device
> > > 03:01: rw=0, want=1701999989, limit=265041
> > > dev 03:01 blksize=1024 blocknr=1701999988 sector=-890967320 size=1024
> > > count=1
> > > EXT2-fs error (device ide0(3,1)): ext2_readdir: directory #48219
> contains
> > a
> > > hole at offset 1768690688
> > > attempt to access beyond end of device
> > > 03:01: rw=0, want=1701999989, limit=265041
> > > dev 03:01 blksize=1024 blocknr=1701999988 sector=-890967320 size=1024
> > > count=1
> > > EXT2-fs error (device ide0(3,1)): ext2_readdir: directory #48219
> contains
> > a
> > > hole at offset 1768691712
> > > attempt to access beyond end of device
> > > 03:01: rw=0, want=1701999989, limit=265041
> > > dev 03:01 blksize=1024 blocknr=1701999988 sector=-890967320 size=1024
> > > count=1
> > > EXT2-fs error (device ide0(3,1)): ext2_readdir: directory #48219
> contains
> > a
> > > hole at offset 1768692736
> > > attempt to access beyond end of device
> > > 03:01: rw=0, want=1701999989, limit=265041
> > > dev 03:01 blksize=1024 blocknr=1701999988 sector=-890967320 size=1024
> > > count=1
> > > EXT2-fs error (device ide0(3,1)): ext2_readdir: directory #48219
> contains
> > a
> > > hole at offset 1768693760
> > > attempt to access beyond end of device
> > > 03:01: rw=0, want=1701999989, limit=265041
> > > dev 03:01 blksize=1024 blocknr=1701999988 sector=-890967320 size=1024
> > > count=1
> > > EXT2-fs error (device ide0(3,1)): ext2_readdir: directory #48219
> contains
> > a
> > > hole at offset 1768694784
> > > attempt to access beyond end of device
> > > 03:01: rw=0, want=1701999989, limit=265041
> > > dev 03:01 blksize=1024 blocknr=1701999988 sector=-890967320 size=1024
> > > count=1
> > > EXT2-fs error (device ide0(3,1)): ext2_readdir: directory #48219
> contains
> > a
> > > hole at offset 1768695808
> > > attempt to access beyond end of device
> > > 03:01: rw=0, want=1701999989, limit=265041
> > > dev 03:01 blksize=1024 blocknr=1701999988 sector=-890967320 size=1024
> > > count=1
> > > EXT2-fs error (device ide0(3,1)): ext2_readdir: directory #48219
> contains
> > a
> > > hole at offset 1768696832
> > > attempt to access beyond end of device
> > > 03:01: rw=0, want=1701999989, limit=265041
> > > dev 03:01 blksize=1024 blocknr=1701999988 sector=-890967320 size=1024
> > > count=1
> > > EXT2-fs error (device ide0(3,1)): ext2_readdir: directory #48219
> contains
> > a
> > > hole at offset 1768697856
> > > attempt to access beyond end of device
> > > 03:01: rw=0, want=1701999989, limit=265041
> > > dev 03:01 blksize=1024 blocknr=1701999988 sector=-890967320 size=1024
> > > count=1
> > > EXT2-fs error (device ide0(3,1)): ext2_readdir: directory #48219
> contains
> > a
> > > hole at offset 1768698880
> > > attempt to access beyond end of device
> > > 03:01: rw=0, want=1701999989, limit=265041
> > > dev 03:01 blksize=1024 blocknr=1701999988 sector=-890967320 size=1024
> > > count=1
> > > EXT2-fs error (device ide0(3,1)): ext2_readdir: directory #48219
> contains
> > a
> > > hole at offset 1768699904
> > > attempt to access beyond end of device
> > > 03:01: rw=0, want=1701999989, limit=265041
> > > dev 03:01 blksize=1024 blocknr=1701999988 sector=-890967320 size=1024
> > > count=1
> > > EXT2-fs error (device ide0(3,1)): ext2_readdir: directory #48219
> contains
> > a
> > > hole at offset 1768700928
> > > attempt to access beyond end of device
> > > 03:01: rw=0, want=1701999989, limit=265041
> > > dev 03:01 blksize=1024 blocknr=1701999988 sector=-890967320 size=1024
> > > count=1
> > > EXT2-fs error (device ide0(3,1)): ext2_readdir: directory #48219
> contains
> > a
> > > hole at offset 1768701952
> > > attempt to access beyond end of device
> > > 03:01: rw=0, want=1701999989, limit=265041
> > > dev 03:01 blksize=1024 blocknr=1701999988 sector=-890967320 size=1024
> > > count=1
> > > EXT2-fs error (device ide0(3,1)): ext2_readdir: directory #48219
> contains
> > a
> > > hole at offset 1768702976
> > > attempt to access beyond end of device
> > > 03:01: rw=0, want=1701999989, limit=265041
> > > dev 03:01 blksize=1024 blocknr=1701999988 sector=-890967320 size=1024
> > > count=1
> > > EXT2-fs error (device ide0(3,1)): ext2_readdir: directory #48219
> contains
> > a
> > > hole at offset 1768704000
> > > attempt to access beyond end of device
> > > 03:01: rw=0, want=1701999989, limit=265041
> > > dev 03:01 blksize=1024 blocknr=1701999988 sector=-890967320 size=1024
> > > count=1
> > > EXT2-fs error (device ide0(3,1)): ext2_readdir: directory #48219
> contains
> > a
> > > hole at offset 1768705024
> > > attempt to access beyond end of device
> > > 03:01: rw=0, want=1701999989, limit=265041
> > > dev 03:01 blksize=1024 blocknr=1701999988 sector=-890967320 size=1024
> > > count=1
> > > EXT2-fs error (device ide0(3,1)): ext2_readdir: directory #48219
> contains
> > a
> > > hole at offset 1768706048
> > > attempt to access beyond end of device
> > > 03:01: rw=0, want=1701999989, limit=265041
> > > dev 03:01 blksize=1024 blocknr=1701999988 sector=-890967320 size=1024
> > > count=1
> > > EXT2-fs error (device ide0(3,1)): ext2_readdir: directory #48219
> contains
> > a
> > > hole at offset 1768707072
> > > attempt to access beyond end of device
> > > 03:01: rw=0, want=1701999989, limit=265041
> > > dev 03:01 blksize=1024 blocknr=1701999988 sector=-890967320 size=1024
> > > count=1
> > > EXT2-fs error (device ide0(3,1)): ext2_readdir: directory #48219
> contains
> > a
> > > hole at offset 1768708096
> > > attempt to access beyond end of device
> > > 03:01: rw=0, want=1701999989, limit=265041
> > > dev 03:01 blksize=1024 blocknr=1701999988 sector=-890967320 size=1024
> > > count=1
> > > EXT2-fs error (device ide0(3,1)): ext2_readdir: directory #48219
> contains
> > a
> > > hole at offset 1768709120
> > > attempt to access beyond end of device
> > > 03:01: rw=0, want=1701999989, limit=265041
> > > dev 03:01 blksize=1024 blocknr=1701999988 sector=-890967320 size=1024
> > > count=1
> > > EXT2-fs error (device ide0(3,1)): ext2_readdir: directory #48219
> contains
> > a
> > > hole at offset 1768710144
> > > attempt to access beyond end of device
> > > 03:01: rw=0, want=1701999989, limit=265041
> > > dev 03:01 blksize=1024 blocknr=1701999988 sector=-890967320 size=1024
> > > count=1
> > > EXT2-fs error (device ide0(3,1)): ext2_readdir: directory #48219
> contains
> > a
> > > hole at offset 1768711168
> > > EXT2-fs error (device ide0(3,1)): ext2_readdir: bad entry in directory
> > > #56306: rec_len % 4 != 0 - offset=0, inode=606087727, rec_len=25673,
> > > name_len=58
> > > EXT2-fs error (device ide0(3,1)): ext2_readdir: bad entry in directory
> > > #56308: directory entry across blocks - offset=0, inode=1699881006,
> > > rec_len=26980, name_len=115
> > > EXT2-fs error (device ide0(3,1)): ext2_readdir: bad entry in directory
> > > #56310: rec_len % 4 != 0 - offset=0, inode=1701409364, rec_len=8307,
> > > name_len=116
> > > EXT2-fs error (device ide0(3,1)): ext2_readdir: bad entry in directory
> > > #56311: rec_len % 4 != 0 - offset=0, inode=1700754537, rec_len=28781,
> > > name_len=116
> > > EXT2-fs error (device ide0(3,5)): ext2_readdir: bad entry in directory
> > > #38162: rec_len % 4 != 0 - offset=0, inode=673212009, rec_len=26401,
> > > name_len=101
> > > EXT2-fs warning (device ide0(3,5)): ext2_free_blocks: bit already
> cleared
> > > for block 254658
> > >
> > > ================ end ==========
> > >
> > > You problably don't need it all, but here you have it.
> > >
> > > At first look I thought that I maybe switched hard drives on myself,
in
> > the
> > > exitement of the moment, but I double check jumpers, as well as data
> that
> > > I'd added just recently to some httpd folders and this is the right
> master
> > > drive.
> > >
> > > I can also tell that it's talking about /dev/hda1 and /dev/hda5
> partitions
> > > (slash and /tmp mount points respectively)
> > >
> > > Is there anything you can make out of this?
> > >
> > > Much appreciated in advance.
> > >
> > >
> > >
> > > +=+=+=+=+=+=+=+=+=+=+=+=+
> > > j.rafael.s�nchez
> > > Systems Administrator
> > > +=+=+=+=+=+=+=+=+=+=+=+=+
> > > Itres Research Limited
> > > www.itres.com
> > > Phone: 403.250.9944
> > > Fax: 403.250.9916
> > > +=+=+=+=+=+=+=+=+=+=+=+=+
> > >
> > >
> > >
>
>
>
