Hello...

Can anyone please suggest regard to extrenal hardisk as am new to linux.
which external hard disk can be bought (about 1 TB) to backup oracle database running on redhat linux into it.

I read some blogs that EHRD are based on ntfs filesystem and linux only supports hrd of format ext2,ext3,ext4.
Please tell which EHRD we can buy.
I think EHRD will be on ntfs format not ext3.
might also be fat32,fat16.

If we buy external harddisk of format ntfs file system, how can we mount, format it to ext3.
We already have these mount points

Thanks in advance

Filesystem Size Used Avail Use% Mounted on
/dev/sda7 19G 761M 18G 5% /
/dev/sda14 305G 274G 17G 95% /u09
/dev/sda12 9.5G 151M 8.9G 2% /tmp
/dev/sda11 9.5G 157M 8.9G 2% /home
/dev/sda10 15G 2.6G 11G 20% /usr
/dev/sda9 19G 6.8G 12G 38% /var
/dev/sda8 19G 174M 18G 1% /opt
/dev/sda6 95G 32G 58G 36% /u01
/dev/sda5 95G 2.9G 87G 4% /u03
/dev/sda3 379G 90G 270G 25% /u02
/dev/sda2 379G 106G 254G 30% /u04
/dev/sda1 487M 18M 444M 4% /boot
tmpfs 7.7G 1.7M 7.7G 1% /dev/shm
none 7.7G 40K 7.7G 1% /var/lib/xenstored

I think any external hard drive will be fine with Linux.

You can set up partitions and filesystems in the same way that you would with an internal drive----e.g. use fdisk, GParted, cfdisk, etc. to set up the partitions, and then use "mkfs" to create the filesystems.

I have three external USB hard drives from three different manufacturers (Seagate, Western Digital, and Fantom) and they all work flawlessly with Linux.

Note that, if your distro does not include NTFS drivers by default (and some, such as Debian, do not), you may need to get them, as most of these seem to come NTFS these days (in the olden days. when I was a young 'un, they tended to come FAT32).

Might even look at making it a LVM type to use.