Raid problems

T

top-dad

Just wondering if someone can help me, i have 2 x 120gig seagat
barracuda sata drives setup in raid 0 format. What has been happenin
is that everytime i boot up it does a chkdsk, and i get file recor
segment 6860 is unreadable, but never fixes the problem, anyway
went into computer managent and read it says bad blocks, als
downloaded seatools a utillity for seagate hdd and it shows that 1 o
my hdd only has failed the test, the other one is ok. Now everythin
runs fine on my computer no data loss just annoying startup, what i
asking is how do i fix this bad block, i read some where that ther
is some tool that fixes it up or just stops the hdd from reading th
bad block, can someone help me ?, can i use seatools to fix it i see
an option in there for it, just want to ask before i do anything
would hate to lose everything
 
A

Arno Wagner

Previously top-dad said:
Just wondering if someone can help me, i have 2 x 120gig seagate
barracuda sata drives setup in raid 0 format. What has been happening
is that everytime i boot up it does a chkdsk, and i get file record
segment 6860 is unreadable, but never fixes the problem, anyway i
went into computer managent and read it says bad blocks, also
downloaded seatools a utillity for seagate hdd and it shows that 1 of
my hdd only has failed the test, the other one is ok. Now everything
runs fine on my computer no data loss just annoying startup, what im
asking is how do i fix this bad block, i read some where that there
is some tool that fixes it up or just stops the hdd from reading the
bad block, can someone help me ?, can i use seatools to fix it i seen
an option in there for it, just want to ask before i do anything i
would hate to lose everything.

If you have visible bad blocks, then there is a good change of
the disk dying. Modern disks do a very good job of hiding bad
blocks and usually only show them when they have grown bad over
time (in which case overwriting the file they are in will correct
the problem) or when the disk has run out of spare sectors.

If the disk has run out of spares, then the only way to fix that
is to replace the disk. With RAID0 that means you need to move
all data on the RAID to another disk. One of the reasons RAID0
is not a good choice for data dat has any worth.

Arno
 
F

Folkert Rienstra

If you have visible bad blocks, then there is a good change of
the disk dying.

The same chance that it isn't dying but suffering from high temperature
or bad power supply.
Modern disks do a very good job of hiding bad blocks

No, they don't. They replace'm if and when they can.
That isn't always possible.
and usually only show them when they have grown bad over time

.... without having been read over that same time, not allowing
the disk to take care of them in time when it was still possible.
(in which case overwriting the file they are in will correct the problem)
or when the disk has run out of spare sectors.

Which will never happen with literally millions of spares available.
If the disk has run out of spares,

Which will never happen.
A drive that runs out of spare sectors has suffered
a different problem that's unlikely to be internal.
then the only way to fix that is to replace the disk.

Or run the manufacturers diagnostic and see what that
can do to return any illegally used up spares, if possible.
 
R

Rod Speed

Folkert Rienstra said:
The same chance that it isn't dying but suffering from high
temperature
or bad power supply.


No, they don't. They replace'm if and when they can.
That isn't always possible.


... without having been read over that same time, not allowing
the disk to take care of them in time when it was still possible.
Which will never happen with literally millions of spares available.

Mindless pig ignorant silly stuff. Modern drives dont have millions of
spares.
Which will never happen.
A drive that runs out of spare sectors has suffered
a different problem that's unlikely to be internal.

Easy to claim.
Or run the manufacturers diagnostic and see what that
can do to return any illegally used up spares, if possible.

Or to reallocate what the drive has decided isnt safe to add
to to the list of bads. That allows the user to decide that he
doesnt care that the data in that sector isnt recoverable.

Seatools has that capability for a reason.
 
F

Folkert Rienstra

Mindless pig ignorant silly stuff.

We'll see.
Modern drives dont have millions of spares.

0.75% of drive capacity on an IBM 60GXP series.
That's 1.5 million spare sectors on a 100GB drive.
Easy to claim.
Or to reallocate what the drive has decided isnt safe to add
to to the list of bads.

What exactly did you not understand in:
That allows the user to decide that he doesnt care that the
data in that sector isnt recoverable.

What exactly did you not understand in:
Seatools has that capability for a reason.

What exactly did you not understand in:
 
R

Rod Speed

We'll see.

We will indeed, with egg all over your silly little face, as always.
0.75% of drive capacity on an IBM 60GXP series.

That aint a modern drive, its ancient now.
That's 1.5 million spare sectors on a 100GB drive.

Terminally stupid to have that many spares on a modern drive, stupid.
What exactly did you not understand in:

It doesnt have a damned thing to do with running out of
spares, everything to do with the user deciding that he
doesnt care about the data in those sectors and just
wants those sectors added to the bad sector list.
What exactly did you not understand in:

See above.
What exactly did you not understand in:

See above.

Done like a ****ing dinner, as always.
 
T

top-dad

Ok what is visible bad blocks ?, and seatools has the capability ?
yeah well how thats why im asking how do i do it using seatools, a
for the disk dying i cant see it doing that as i said it is runnin
fine no problems at all, no data loss etc etc. I even went into th
nvidia raid setup and it says raid setup healthy, im pretty sure a
speed said you just add it to the bad sector list but thats what i
asking how do you do it ?
 
A

Arno Wagner

Previously top-dad said:
Ok what is visible bad blocks ?,

Bad blocks the disk does not hide from you. Every HDD (allmost)
has bad blocks. In modern HDDs some small percentace of the sectors
is set aside as replacement sectors. The disk knows which ones are
bad and uses a replacement sector whenever a bad one is accessed.
and seatools has the capability ?,
yeah well how thats why im asking how do i do it using seatools, as
for the disk dying i cant see it doing that as i said it is running
fine no problems at all, no data loss etc etc.

Could have been a transitional event.
I even went into the
nvidia raid setup and it says raid setup healthy, im pretty sure as
speed said you just add it to the bad sector list but thats what im
asking how do you do it ?.

Overwrite the bad sectors. The disk will do it for you then.
There is no other way. You can try to achive this without data loss
by copying all the data on the disk around. Or if you know which
files the defects are in, copy them and delete the originals.
The next time these secotrs are written, the disk will use spare
sectors.

Arno
 
R

Rod Speed

top-dad said:
Ok what is visible bad blocks ?, and seatools has the capability ?,
yeah well how thats why im asking how do i do it using seatools,
as for the disk dying i cant see it doing that as i said it is running
fine no problems at all, no data loss etc etc. I even went into the
nvidia raid setup and it says raid setup healthy, im pretty sure as
speed said you just add it to the bad sector list but thats what im
asking how do you do it ?.

Seatools has that capability, to do that. The standalone version, anyway.
 
T

top-dad

Seatools has that capability, to do that, yeah but how and what do i
click on, and will it affect my raid setup ?.
 
R

Rod Speed

top-dad said:
Seatools has that capability, to do that, yeah but how and what do i
click on,

The entry in seatools that specifys that.
and will it affect my raid setup ?.

Could do since it basically replaces that sector with a good
one, and loses the contents of the bad sector in the process.
 

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