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partitioning - What is the difference between LBA and non-LBA IDs . . . Modern OSes are usually able to determine on their own how a drive is supposed to be addressed Even back when LBA addressing was young, and disks were accessed via the BIOS, it should have been possible to simply probe for the availability of the appropriate interrupt 13h calls and fall back to the CHS version if they are absent The additional partition IDs therefore seem redundant What was
hard drive - LBA and sector size - Super User 7 LBA itself can apply to any sector size, but hard drive sector sizes have been 512 bytes since the start of the PC, and all hardware and software has been hard-coded with that assumption So rather than wait for new systems and operating systems to support 4K sectors, the drive will appear externally as a 512-byte sector drive
hard drive - CHS to LBA mapping - (Disk Storage) - Super User Before LBA you simply had the physical mapping of a disk, which originally disk access with the BIOS on an old a IBM-PC compatible machine would look something like this the following: Cylinder Num
Why does sector-number addressing in CHS start at sector 1 and not 0? Indeed, if we translate the CHS address 0 0 1 to an LBA, the resulting LBA will be 0x00000000 (this is why 1 is subtracted from the sector index in most CHS to LBA calculations, and why 1 is added to the index for LBA to CHS calculations)
Hard drive LBA Error: How to proceed? - Super User LBA is an acronym for Logical Block Addressing In this case I assume it is just another, possibly more technically accurate way of referring to a "bad sector"
How to get the PBA for a given LBA in SSD - Super User But SSDs have FTL that stores the LBA-PBA mapping table (L2P table) I have to know this table to know the PBA How to make this? Why I am asking From the result shown with sudo hdparm --fibmap, it seems that the file is stored serially in the disk (i e , from LBA 843338528 to 843338543) But does it shows the truth?
How to move G-List bad sectors into P-List and reassign LBA Here is the trick…During manufacturing, the layout of the LBA blocks occurs by shifting the LBA block sequence past the “Bad” sector The LBA layer simply skips over the identified “Bad” location in the “P” list and continues sequentially in LBA order
How does Logical Cluster Number to LBA translation happen in NTFS? Yes If we assume traditional drive then no LBA to anything conversion takes place But even if we consider SMR or SSD drives in which LBA addresses are dynamically mapped to physical addresses, from the perspective of the OS nothing changes as that part is handled by the drive's firmware NTFS uses logical cluster numbers (LCNs) as storage
boot - MBR vs GPT (Logical Block Addressing) - Super User This is also briefly discussed in the Wikipedia article for logical block addressing: The current 48-bit LBA scheme, introduced in 2003 with the ATA-6 standard, allows addressing up to 128 PiB [ ] However, the common DOS style Master Boot Record (MBR) partition table only supports disk partitions up to 2 TiB in size