EFI disk labeling / understand the parition table / sectors not continue


 
Thread Tools Search this Thread
Operating Systems Solaris EFI disk labeling / understand the parition table / sectors not continue
# 8  
Old 01-18-2019
Quote:
Originally Posted by javanoob
And i shouldn't be overly concern about how the sectors add up ?
As long as there are no overlapping areas, that doesn't matter.
Quote:
e.g. part0 last sector and part8 first sector has a gap of 8 sectors ...
part0 1st sector 0 to last sector 12502430343 > total disk sectors available

part0 sector40 to last sector 12502430343 < total disk sectors available (missing 14 sectors) etc..
If your SSD is a $500k house, these gaps sum up to less than two tenth of a cent...

Last edited by jlliagre; 01-18-2019 at 08:00 PM..
These 2 Users Gave Thanks to jlliagre For This Post:
# 9  
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
Login or Register to Ask a Question

Previous Thread | Next Thread

8 More Discussions You Might Find Interesting

1. 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

2. 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

3. 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

4. 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

5. 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

6. 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

7. 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

8. 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
Login or Register to Ask a Question