RAID 1 (Mirroring and Duplexing) Comparing mirroring and duplexing Mirroring is the simplest method of avoiding data loss when a single disk fails. During writes, data is sent to both disks. During reads, different data can be read from both disks, which provides good read Performance. Duplexing is another form of keeping a copy of data. Where mirroring uses a single controller, duplexing can also handle a controller failure. Duplexing requires an operating system that supports RAID 1.
This site says cost of tiling per square metre is between $95 and $170 psm for floor tiles and $90 and $160 for wall tiles. Those prices include tiles so take $30 psm off those.
Country: I've been quoted Â£53 per square meter for block/insulation/brick. This means that a room which is 6x6x6.5 including the laying of engineering bricks and above the ceiling (parapet) is going to cost me approximately Â£3550.I've worked it out be about 67 square metres.ountry: I've been quoted Â£53 per square meter for block/insulation/brick. This means that a room which is 6x6x6.5 including the laying of engineering bricks and above the ceiling (parapet) is going to cost me approximately Â£3550.