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Solve : Hard disk partition info.? |
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Answer» I have two hard disks installed in a computer. I have one partitioned, formatted and OS installed. Possible partitions Quote I know that you can have up to 4 primary partitions or 3 primary partitions and unlimited number of logical partitions(26 total). Is this per disk? No, partitions are identified by a letter therefore the maximum over all disks is 24 (C-Z). But yes, you can have 4 primary partitions on each disk or 3 primary partitions plus a limited number of logical drives on each disk. The limit on the number DEPENDS on how many drives require a drive letter allocation. ** Here we are considering hard drives only, don't forget that drive letters A: and B: are reserved for floppy drives even if no floppy drive is installed, so the max is 24! Then there are other devices to which drive letters must be allocated (cd, dvd, usb pluggable mass storage devices etc) so the max available for partitions is reduced even further. Quote Can I have two disks with 4 primary partitions? Yes, see 5 above. Quote Can I have two disks wth 3 primary partitions on each and 20 logical partitions between the two? No. Drive letters A: and B: are reserved so the max is 24. (Also see ** above). All AFAIK. Perhaps another member with more experience of partitioning will advise further. Before setting up many primary partitions give consideration to the circumstance (USUALLY found in MS-Dos) where all primary partitions will be allocated drive letters before any logical drives so that partition C: will be the first primary partition on drive 0 while partition D: will be the first primary partition on drive 1 etc... Physical drive 0 might contain partitions C: E: G: whilst physical drive 1 has D: F: I: A bit of a nightmare when it comes to file organization/maintenance. A description is found here. Hope this helps. Great post Dusty but it isn't entirely accurate. With NTFS you can actually have partitions without drive letters because you can create UNIX style directory mounts. So C:\somefoldername\ could actually point to the root of another partition instead of just being another folder on C. It can make things a bit more confusing but it allows for a lot more flexibility than the old drive letter based partitions.Pragma - thanks for dropping in with your very welcome comments. For anyone interested a REASONABLY simple explanation of mounting a Partition, Volume or Drive as a Folder can be found here And thank you for picking up where I dropped the ball by not providing an explanation of how you actually do it. I salute you. |
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