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.
Cement rendering your home can cost up to $28 per square metre on your internal walls for a one coat of 10mm all inclusive of GST and profit margin for your licensed and reputable tradesman.p to $30.00 per square metre for a one coat of 13mm thick render and $42 per square metre on the external facade faÃ§ade if it has to have two. Coats add$ 13 per lineal metre for arris. beading