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manefesto писал(а):iSCSI ?

HAST allows to transparently store data on two physically separated machines connected over the TCP/IP network. Those two machines together will be called a cluster and each machine is one cluster node. HAST works in Primary-Secondary (Master-Backup, Master-Slave) configuration, which means that only one of the cluster nodes can be active at any given time. Active node will be called Primary node. This is the node that will be able to handle I/O requests to HAST-managed devices. Currently HAST is limited to two cluster nodes in total.

HAST operates on block level - it provides disk-like devices in /dev/hast/ directory for use by file systems and/or applications. Working on block level makes it transparent for file systems and applications. There in no difference between using HAST-provided device and raw disk, partition, etc. All of them are just regular GEOM providers in FreeBSD.

Gloft писал(а):Можно попробовать сделать среджствами GEOM.

Мишаня писал(а): Можно попробовать, но я никогда с этим дела не имел, главный вопрос - возможно ли будет одновременно работать на двух серверах с дисками, и чтобы данные дублировались на двух серверах соответственно?

only one of the cluster nodes can be active at any given time. Active node will be called Primary node. This is the node that will be able to handle I/O requests to HAST-managed devices.

Burner писал(а):

Мишаня писал(а): Можно попробовать, но я никогда с этим дела не имел, главный вопрос - возможно ли будет одновременно работать на двух серверах с дисками, и чтобы данные дублировались на двух серверах соответственно?

only one of the cluster nodes can be active at any given time. Active node will be called Primary node. This is the node that will be able to handle I/O requests to HAST-managed devices.

manefesto писал(а):кластер в лапки

Burner писал(а):делайте на линуксе, там кластерные технологии продвинутей