Autor: Balthasar (balth_at_ikp.atm.com.pl)
Data: Thu 14 Nov 1996 - 22:52:03 MET
Hi!
Czy ktokolwiek już postawił Win95 na FAT32?
Jak działają programy DOS'owe?
Zamieszczam ponizej opis FAT32 dostepny w MS Service Release 2
dla zainteresowanych.
-- Balthasar ---------------------------------------- balth_at_ikp.atm.com.pl http://www.atm.com.pl/~balth LARGE DISK SUPPORT (FAT32) ========================== Introduction ------------ The File Allocation Table (FAT) file system has been the primary disk format used by MS-DOS-based and Windows-based personal computers since 1981. FAT is a fast and broadly supported disk format, but until now, it has been unable to support single drives over 2 gigabytes (GB). A gigabyte is equal to 1,024 megabytes, or approximately 1.07 billion bytes. This product includes support for an enhanced version of the FAT file system, FAT32, that supports drives up to 2 terabytes (approximately 2,000 GB). It also allocates space on the drive in smaller units (called clusters) than earlier versions of FAT, resulting in more efficient use of space on the drive. This section addresses some of the known issues with FAT32, and answers some of the questions you might have. Compatibility ------------- FAT32 is designed to be fully compatible with existing computers and programs designed to run on earlier versions of MS-DOS and Windows. However, many existing disk utilities (programs that perform low-level maintenance tasks on disks, such as disk compression or repair tools and defragmenters) will need to be updated in order to work with FAT32 drives. The disk tools contained with Windows, including ScanDisk, Backup, and Disk Defragmenter, fully support FAT32 drives. FAT32 drives cannot be compressed by using DriveSpace, however. In addition, operating systems other than this version of Windows are unable to access information stored on FAT32 drives. This includes the original version of Windows 95, Windows NT 4.0 and earlier, and previous versions of MS-DOS and Windows. However, this version of Windows does support accessing FAT32 drives in MS-DOS mode. In addition, FAT32 drives can be shared over a network and accessed by remote computers in the same way as older-style FAT drives, even if the remote computers don't support FAT32. Known Problems -------------- Running Interlink on a FAT32 drive ---------------------------------- If you are running Interlink as a server on a FAT32 drive, all connections and inquiries (such as DIR) result in the following error message: "File allocations table bad, Drive X." Also, the Interlink "manager" shows the incorrect total drive size. This problem does not occur on FAT16 drives. To see your FAT32 server, start your computer in protect mode with Interlink running. Incorrect free disk space reported by programs ---------------------------------------------- Programs not developed specifically for this version of Windows may be unable to report free space accurately on large hard disks that use FAT32. Older programs are unable to report more than 2 GB of free or total disk space, and many will report incorrect amounts of free, total, or used space on large hard drives. Windows 95 version 4.00.950 B provides new MS-DOS and Win32 APIs that programs can use to determine free or total disk space over 2 GB. Save to File (Hibernate) feature may be incompatible with FAT32 -------------------------------- On computers containing a BIOS made by Phoenix Technologies, you might not be able to use the Save to File feature if your primary (boot) drive is formatted using FAT32. If your PhDISK utility is earlier than version 5.0, you must obtain an updated version of the utility and an updated ROM BIOS from your computer manufacturer in order to use a Save to Disk file. With older versions of the ROM BIOS, your computer may be unable to start if it tries to read a Save to Disk file from a FAT32 drive. If this occurs, you must disable the Save to File feature in your ROM BIOS. This does not affect computers using a disk partition to store the Save to Disk data. Ontrack Systems Disk Manager ---------------------------- If you use the Ontrack Systems Disk Manager program on a computer with FAT32 drives, there might be a long pause when you start your computer and/or the drive will be set to run in compatibility mode. If you use version 7.0x, you can avoid this pause by using the /L=0 option with Disk Manager. To do this, carry out the following steps: 1. Start your computer normally, and then run Disk Manager. 2. Click the Maintenance menu, and then click Update Dynamic Drive Overlay. 3. Add /L=0 to any other options that are already present. 4. Save the settings, and then restart your computer. If you are running an earlier version of Disk Manager and you want to use FAT32, you should update to version 7.04 or later and use the /L=0 switch. V Communications System Commander --------------------------------- Versions 2.28 and earlier of V Communications System Commander are incompatible with FAT32. If your primary (boot) hard disk uses FAT32 exclusively, you must obtain version 3 or later of System Commander. Iomega Jaz tools may be incompatible with FAT32 ----------------------------------------------- If you format an Iomega Jaz disk using FAT32, you may need to obtain updated versions of the Jaz tools. Older versions of the tools do not support FAT32 Jaz disks properly. As a result, the eject, write- protection, and password-protection options will be disabled. Updated versions of these tools that are compatible with FAT32 are available from Iomega, and from the Microsoft Windows Driver Library contained on the Windows CD-ROM disk and available for download from various on-line services. SyQuest Techology, Inc. device drivers -------------------------------------- Older versions of the Squatdvr.sys and Sqdriver.sys device drivers are incompatible with this version of Windows and will hang when your computer starts if your primary (boot) disk uses FAT32. You must remove the associated DEVICE= line from your Config.sys file in order to start your computer from a FAT32 drive. Updated versions of these drivers that are compatible with FAT32 are available from SyQuest, and from the Microsoft Windows Driver Library contained on the Windows CD-ROM disk and available for download from various on-line services. Questions and Answers --------------------- How do I tell if a drive is a FAT32 drive? ------------------------------------------ In My Computer, right-click the icon that represents your hard disk, and then click Properties. The kind of drive you are using is indicated after the word Type at the top of the screen. How do I enable FAT32? ---------------------- If you obtained this version of Windows with a new computer system, it may already be using the FAT32 disk format. If not, or if you add a new hard disk to your computer and you want to use the FAT32 file system, you enable it by running the FDISK program. FDISK is a program used to create or delete one or more partitions on a hard disk. A partition is a section of a hard disk that appears to be a single disk drive. Most hard disks must be partitioned with FDISK before they can be used with Windows. If your computer has a disk drive larger than 512 megabytes (MB), when you run FDISK it will prompt you whether to enable large disk support. If you answer yes, then any partition you create that is over 512 MB will use the FAT32 file system. If you answer no, then you will be unable to create disk partitions larger than 2GB. After creating a partition with FDISK, you must restart your computer and then format the drive before you can store data on it. IMPORTANT NOTE: FDISK is an extremely powerful program. If you delete a disk partition by using FDISK, all the data in that partition will be permanently destroyed. If you are unfamiliar with FDISK, you may want to consult a qualified computer technician before using it. Is FAT32 faster than earlier versions of FAT? --------------------------------------------- In general, no. In most cases, your computer will perform about the same if your hard disk is formatted by using FAT32 as it did previously. In some cases, however, performance may be worse than with the original version of FAT. Note that FAT32 drives may be significantly slower when your computer is running is MS-DOS mode or when you are running Windows in Safe Mode. If you use MS-DOS mode with FAT32 drives, you may find that performance is improved significantly by loading the Smart Drive disk-caching program. What size clusters are used on FAT32 drives? -------------------------------------------- The following cluster sizes are typically used on FAT32 drives: Drive size Cluster size ----------- ------------ <260 MB 512 bytes 260 MB - 8 GB 4 kilobytes (KB) 6 MB - 16 GB 8 KB 16 MB - 32 GB 16 KB >32 GB 32 KB Can I use disk compression on FAT32 drives? ------------------------------------------- No. DriveSpace 3 does not support compressing FAT32 drives.
To archiwum zostało wygenerowane przez hypermail 2.1.7 : Tue 18 May 2004 - 12:56:23 MET DST