Sponsored Content
Operating Systems Solaris EFI disk labeling / understand the parition table / sectors not continue Post 303029046 by javanoob on Sunday 20th of January 2019 12:41:43 AM
Old 01-20-2019
Quote:
Originally Posted by jlliagre
As long as there are no overlapping areas, that doesn't matter.

If your SSD is a $500k house, these gaps sum up to less than two tenth of a cent...
Hahaha jlliagre, nice analogy..
Thank for your reply. I am just wondering why are these sectors distributed in such way and how they sums up.

Last question i hope you don't mind, since these are 4k disks, is there any reason why ZFS are aligning them with start sector 256 ? instead of the default 40 ?

Code:
40 = 40 * 512 = 20480bytes 
20480bytes/4096=5 x 4k sector  - which is in multiples of 4k and should be fine.

Regards,
Noob
 

8 More Discussions You Might Find Interesting

1. Solaris

Automatic disk labeling

First post :) ... Here is a script for automatic labeling of previously unlabeled disks. Other methods exist (format -f cmd_file), but I like this because it's all in one place. #!/bin/ksh #---------------------- # format_label # Automatic labeling of previously unlabeled disks #... (1 Reply)
Discussion started by: kwachtler
1 Replies

2. Filesystems, Disks and Memory

SCSI disk spare sectors

Is there a way to determine the number of available spare sectors on a disk ? as it may be useful for notifying a user to take a backup of the disk before it runs into a medium error. (6 Replies)
Discussion started by: rednex
6 Replies

3. Shell Programming and Scripting

perl - understand process status and continue the code execution

Hello, I need advice on how to check if started processes are finished in perl, here's explanation : OS is RHEL 4, perl -v = "This is perl, v5.8.0 built for i386-linux-thread-multi" The logic of the script : #!/usr/bin/perl use warnings; $param1 = $ARGV; $param2 = $ARGV; $param3 =... (2 Replies)
Discussion started by: sysgate
2 Replies

4. Filesystems, Disks and Memory

Smartmontools and fixing Unreadable Disk Sectors

I found a document: Bad block HOWTO for smartmontools My hard drive is Maxtor: root]# fdisk -lu /dev/hda Disk /dev/hda: 81.9 GB, 81964302336 bytes 255 heads, 63 sectors/track, 9964 cylinders, total 160086528 sectors Units = sectors of 1 * 512 = 512 bytes Disk identifier: 0x3f4e3f4d ... (0 Replies)
Discussion started by: justinian
0 Replies

5. Linux

C++ Code to Access Linux Hard Disk Sectors (with a LoopBack Virtual Hard Disk)

Hi all, I'm kind of new to programming in Linux & c/c++. I'm currently writing a FileManager using Ubuntu Linux(10.10) for Learning Purposes. I've got started on this project by creating a loopback device to be used as my virtual hard disk. After creating the loop back hard disk and mounting it... (23 Replies)
Discussion started by: shen747
23 Replies

6. Boot Loaders

read sectors from disk failed with timeout

i'm writing some code to simulate the boot progress after power on but when i try to read the 2nd sector from a floppy disk, this operation always fail with ah=0x80h which means timeout, how can i get over this problem? my code would be like this: $ cat boot.S .code16 #define SETUPLEN 4... (0 Replies)
Discussion started by: wljackhero
0 Replies

7. Linux

read sectors from disk failed with timeout

i'm writing some code to simulate the boot progress after power on but when i try to read the 2nd sector from a floppy disk, this operation always fail with ah=0x80h which means timeout, how can i get over this problem? my code would be like this: $ cat boot.S .code16 #define SETUPLEN 4... (0 Replies)
Discussion started by: wljackhero
0 Replies

8. UNIX for Advanced & Expert Users

read sectors from disk failed with timeout

i'm writing some code to simulate the boot progress after power on but when i try to read the 2nd sector from a floppy disk, this operation always fail with ah=0x80h which means timeout, how can i get over this problem? my code would be like this: $ cat boot.S .code16 #define SETUPLEN 4... (0 Replies)
Discussion started by: wljackhero
0 Replies
MKEXFATFS(8)						      System Manager's Manual						      MKEXFATFS(8)

NAME
mkexfatfs - create an exFAT file system SYNOPSIS
mkexfatfs [ -i volume-id ] [ -n volume-name ] [ -p partition-first-sector ] [ -s sectors-per-cluster ] [ -v ] device DESCRIPTION
mkexfatfs creates an exFAT file system on a block device. device is a special file corresponding to the device. OPTIONS
Command line options available: -i volume-id A 32-bit hexadecimal number. By default a value based on current time is set. -n volume-name Volume name (label), up to 15 characters. By default no label is set. -p partition-first-sector First sector of the partition starting from the beginning of the whole disk. exFAT super block has a field for this value but in fact it's optional and does not affect anything. Default is 0. -s sectors-per-cluster Number of physical sectors per cluster (cluster is an allocation unit in exFAT). Must be a power of 2, i.e. 1, 2, 4, 8, etc. Cluster size can not exceed 32 MB. Default cluster sizes are: 4 KB if volume size is less than 256 MB, 32 KB if volume size is from 256 MB to 32 GB, 128 KB if volume size is 32 GB or larger. -v Print version and copyright. EXIT CODES
Zero is returned on successful creation. Any other code means an error. AUTHOR
Andrew Nayenko SEE ALSO
mkfs(8) January 2011 MKEXFATFS(8)
All times are GMT -4. The time now is 08:12 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy