在HI-PDA上看到fatdog 的介绍，于是下载来试用了一下，感觉还不错，发到这里与大家共享
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使用nvfs系统的palm machine必看，直接由rom备份系统，减少crash机率，不消耗ram(db cache)的空间(似乎是目前唯一能做到这点的，小弟用了几套常见的备份软件都无法做到这点)，这个好处就是你灌了一堆软件并不是每天每个都用得到，可是一但启动备份的话，大部份的备份软件都是会把软件由rom拷到ram (db chche)中再进行备份，如此一来宝贵的db cache就马上满了，接下来就是频繁的db cache数据交换，如果你有用db cachetool可能还会引发清理，这么一搞下来机器的稳定性就差多了，nv backup只单纯的由rom备份，故几乎不消耗db cache，以小弟为例，backupman备份完后db cache约剩下3 mb，用nv backup备份完是9 mb。只有你叫用软件时才会消耗db cache，再加上有的网友都会定时reset(nv backup可设定于备份完成后自动reset释放db cache)，相信扰人的db cache不足问题将会因为这个备份方式的改进而减少，机器的稳定性也会增加，而且这个软件还是免费的，真是功德无量。
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NVBackup automatically copies itself to the backup card, so that to restore, you need only insert this card, and NVBackup will be available to the launcher.You can schedule a daily backup. Menu | Options | Schedule. You can set the time of the backup. If "Cycle" is set to 1, then everyday at the specified time (unless you are at your PDA then and cancel the backup request--there will be 20 seconds to do that) the chronologically last backup will be updated. If "Cycle" is set to, e.g., 3, then the last three backups will be updated (and if you don't have three backups yet created, they will be created day by day as needed), in a cyclic pattern, so you will have backups for the last three days. (You should be able to figure out how the 2 and 4 options work.)For scheduling to work, NV Backup must be found in Program Memory (RAM), not on a card.Compression may slightly slow down the initial backup, but speeds up updates, and reduces space requirements by about 50%.Source code is available at handypalmstuff.sf.net.
