Backup dan kembali backup benar-benar sangat membantu saya saat terjadi masalah PSU server yang mendadak tidak berfungsi. Kejadian ini menimpa salah satu server utama hosting kami yang sudah cukup lama kami jalankan, meski server tersebut masih tergolong baru; sekitar 5 bulan. Memang kerusakan komponen elektronik tidak bisa diduga, demikian juga kejadian ini yang down tepat tengah malam, 4 Jan 2012. Pergantian PSU keesokan harinya ternyata harus menunggu hingga sore, karena stock PSU jenis server langka. Meski demikian, secara paralel saya mencoba memindahkan harddisk server ke server sementara sambil menunggu penggantian PSU. Ternyata, harddisk harus discan dan membutuhkan waktu lama. Untungnya saya melakukan backup di server lain dan akhirnya secara paralel saya melakukan restore data secara massal ke server production lainnya. Dengan bantuan script dan adanya backup semua client, akhirnya semua client bisa live kembali pukul 11 siang. Dari kejadian ini, saya benar-benar merasakan pentingnya backup. Downtime bisa diminimalisasikan dan data client terjamin.
Sudahkah Anda membackup data Anda hari ini?
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