El 24 de febrero de 2014, 10:23, Maxi <maximiliano.duarte@gmail.com> escribió:

Zfs, se terminó de implementar en linux? recuerdo que habia cuestiones de licencias que no permitian el uso. Solo se usaba en Solaris. Para mi sin conocer mucho, y viendo el funcionamiento en un curso de solaris hace muchos años, era fantastico, la forma de mover bloques de datos como si fuera un LVM, agregado de discos y muchas cosas mas con pocas instrucciones --

Como la realidad dependiente de la ciencia y la tecnica va mutando con el tiempo, quería aclarar que el JFFS2 ya no es "lo mas" en flash: JFFS2 JFFS2 is a popular general file system for Flash. JFFS2 was designed for NOR devices, but also supports NAND devices. JFFS2 is a logging file system that uses i-nodes to store data. The file system treats each flash block separately, maintaining lists of blocks that contain valid nodes (clean), blocks that have some dirty i-nodes (dirty), and blocks that are erased and available for use (free). This provides flexibility to the garbage collection algorithms and allows JFFS2 to support static wear leveling by selecting blocks from the clean list as well as from the dirty list. Because JFFS2 builds links of nodes and tracks each block, RAM usage increases with the size of the device(s) used in the file system. With large devices, memory usage and mount time become increasingly problematic with JFFS2. For Flash volumes over 256MB, JFFS2 is not recommended due to excessive mount time and RAM usage when compared with other writable Flash file systems. YAFFS/YAFFS2 YAFFS is a general purpose NAND file system. Unlike JFFS2, YAFFS only supports NAND. YAFFS assigns block sequence numbers to improve initialization and mount time. It also stores a representation of the file system back into Flash from RAM on shutdown. This also improves mount time. LOGFS LOGFS is a logging flash file system intended to resolve the mount performance and RAM scalability issues of JFFS2. In addition, LOGFS provides simple versioning capabilities in the form of “snapshots.” LOGFS is in the process of being refined. UBIFS UBIFS is a relatively new file system designed to correct some of the shortfalls of JFFS2 and YAFFS2. UBIFS is more predictable in initialization performance and RAM requirements, making it a good choice for a general purpose file system as designs move to larger file system volume sizes. Ahora, en sistemas de archivo para SSD, hay uno nuevo mas prometedor: http://www.phoronix.com/scan.php?page=article&item=linux_39_fs&num=1 Se trata del F2FS: http://www.phoronix.com/scan.php?page=news_item&px=MTMxMTU Salu2 -- Para dar de baja la suscripción, mande un mensaje a: opensuse-es+unsubscribe@opensuse.org Para obtener el resto de direcciones-comando, mande un mensaje a: opensuse-es+help@opensuse.org