Make a copy of a unix HDD

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Copy directories in make file

LD:=C:/WindRiver/diab/5.9.3.0/WIN32/bin/dld.exe CFILES:=$(wildcard *.c) OBJFILES:=$(subst .c,.o, $(CFILES)) OBJ_PATH:=$(PRJ_PATH)/out/ ADDOBJFILES := $(addprefix $(OBJ_PATH),$(OBJFILES)) FILES:=C:/EB/tresos/workspace/Test_Spi/output/src copyfiles: cp ...

2. AIX

IBM AIX Internal HDD vs SAN HDD and Oracle

Hi Folks, I am facing an issue with the performance. P4 with 1 processor and 16 GB RAM and SAN HDD = Oracle report takes 25 minutes P5 with 2 processors and 16 GB RAM internall HDD with LPAR = Oracle Report takes 1 hour 15 minutes ( please note I have assigned all the max processors and...

3. Solaris

NTFS HDD readable from UNIX

I have somehow taken on the collateral duties of System Administrator for our small internal network. At current we have one main file server with 48 SATA swappable drives under the Solaris 10 OS. My question is this. Our analysts are bringing back data from the field in Windows formatted...

4. Shell Programming and Scripting

How to make copy work faster

I am trying to copy a folder which contains a list of C executables. It takes 2 mins for completion,where as the entire script takes only 3 more minutes for other process. Is there a way to copy the folder faster so that the performance of the script will improve?

5. UNIX for Dummies Questions & Answers

How to copy my system hdd usb stick from 4GB to 8GB ?

Hi, my router is my Linux embedded device. I have system installed on HDD 4GB usb stick, part1 swap, part2 /opt , part3 data. I need to copy my system to new HDD 8GB usb stick. What is a way for 4GB > 4GB HDD and what for 4GB > 8GB As I remeber, I can copy image of my 4GB HDD usb stick...

6. UNIX for Dummies Questions & Answers

Old HDD copy to new HDD ? im lost...

Over the last few months the HDD spins louder and louder, so I fiqured its time to replace the HDD. Its been running 24/7/365 since 98 :eek:. yes i said since 98 :D I have an IBM system 43P Model 240. 233 MHz. running AIX Version 4. The current HDD is an IBM DGHS COMP IEC -950 FRU PN#...

7. UNIX for Dummies Questions & Answers

How to make a FreeBSD hdd writable from WinXP?

Hey, I was wondering how I can write/edit files on my FreeBSD hdd from windows XP. I specifically need to fix a change I made to /boot/defaults/loader.conf that made it impossible to boot into my FreeBSD hdd. It's a simple fix, but since I can't boot into FreeBSD, I have to fix it from my Windows...

8. Filesystems, Disks and Memory

Unix not Booting after defect HDD

Hi there, Here I have an old HP LC3 server from a client of ours. The server was running in Raid1 Mirror mode. Yesterday the server didn't boot anymore and now I have concluded that 1 drive is damaged. I pulled it out so it can boot from the "good" one. Unfortuanally this didn't work. I...

9. Solaris

Unix not recognising new HDD

I've just replaced the secondary disk drive (was 4 Gb) with a Seagate Barracuda 7200 200 Gb. However the OS seems to think this is only 500 Mb and a spin speed of 5400, although it correct recognises the drive as Seagate ST3200822A. I take it that it still thinks the old drive is attached. How...

10. UNIX for Advanced & Expert Users

SCO UNIX HDD full backup

HI ALL, I need to backup HDD with SCO UNIX. I need to have a full functionaly backup of this hard disk. Does anybody have any tool or subsription how to do it. I tried some SW, but after when I tried to use this copy of my original disk "can not find a root directory". Thanks in advance.

LEARN ABOUT BSD

bad144

BAD144(8)						      System Manager's Manual							 BAD144(8)

NAME

       bad144 - read/write DEC standard 144 bad sector information

SYNOPSIS

       bad144 disktype disk [ sno [ bad ...  ] ]

DESCRIPTION

       Bad144  can  be	used to inspect the information stored on a disk that is used by the disk drivers to implement bad sector forwarding.  The
       format of the information is specified by DEC standard 144, as follows.

       The bad sector information is located in the first 5 even numbered sectors of the last track of the disk pack.  There  are  five  identical
       copies of the information, described by the dkbad structure.  Only the first of these copies is used.

       Replacement sectors are allocated starting with the first sector before the bad sector information and working backwards towards the begin-
       ning of the disk.  A maximum of 126 bad sectors can be supported.  The position of the bad sector in the bad sector table determines  which
       replacement sector it corresponds to.

       The  bad sector information and replacement sectors are conventionally only accessible through the ``h'' file system partition of the disk.
       If that partition is used for a file system, the user is responsible for making sure that it does not overlap the bad sector information or
       any replacement sectors.

       The bad sector structure is as follows:

       struct dkbad {
	      long    bt_csn;		  /* cartridge serial number */
	      u_short bt_mbz;		  /* unused; should be 0 */
	      u_short bt_flag;		  /* -1 => alignment cartridge */
	      struct bt_bad {
		      u_short bt_cyl;	  /* cylinder number of bad sector */
		      u_short bt_trksec;  /* track and sector number */
	      } bt_bad[MAXBAD];
       };

       Unused  slots in the bt_bad array are filled with all bits set, a putatively illegal value.  MAXBAD (in <sys/dkbad.h>) may be tuned locally
       to reduce the space required to hold the bad-sector file in memory.  It may not be greater than 126, which uses the whole disk sector.  Bad
       sectors past MAXBAD may be included by the formatter, but replacement sectors will not be used until MAXBAD is increased.

       Bad144  is invoked by giving a device type (e.g. rk07, rm03, rm05, etc.), and a device name (e.g. hk0, hp1, etc.).  It reads the first sec-
       tor of the last track of the corresponding disk and prints out the bad sector information.  It may also be invoked giving a  serial  number
       for  the  pack  and a list of bad sectors, and will then write the supplied information onto the same location.	Note, however, that bad144
       does not arrange for the specified sectors to be marked bad in this case.  This option should only be used  to  restore	known  bad  sector
       information which was destroyed.

       New bad sectors can be added by running the standard DEC formatter in section ``bad.''

SEE ALSO

       badsect(8)

BUGS

       Not all drivers support bad-sector forwarding on the PDP-11.

       It  should  be  possible to both format disks on-line under UNIX and to change the bad sector information, marking new bad sectors, without
       running a standalone program.

       The bootstrap drivers used to boot the system do not understand bad sectors or handle ECC errors.  This means that none of these errors can
       occur  when  reading the file /unix to boot.  Sector 0 of the disk drive and the file /boot in the root file system of that drive must also
       not have any of these errors in it.

       The drivers that write a system core image on disk after a crash do not handle errors; thus the crash dump area must be free of errors  and
       bad sectors.

3rd Berkeley Distribution														 BAD144(8)

UNIX for Dummies Questions & Answers