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2d
comment Resize RAID partition with GPT partition layout, without LVM
@thms0, no... your data is mirrored, so the idea is to break the mirror, partition the new disk the way you want it, clone the mirror to the new disk, then clone back. The shrinking of the volume is done offline and safely using resize2fs and mdadm to shrink the fs and raid array.
2d
answered Resize RAID partition with GPT partition layout, without LVM
Apr
13
comment Very irregular disk write performance and repeated SATA timeouts
@DonZoomik, this makes no sense. Shingled drives can only do large sequential writes, at least to the areas that are shingled. It is when you try to do random overwrites that you run into problems since at least until operating systems become shingle aware, the drive has to internally erase and rewrite large tracks. I would imagine this internal drive emulation, not unlike SSDs, needs TRIM enabled to effectively manage this emulation, and without it, leads to this terrible sustained sequential write throughput since the drive has to rewrite data it must assume is still needed.
Mar
21
answered Prevent HDDs from spinning up before shutdown in Ubuntu/ZoL/SAS2008 environment
Feb
23
comment How to remove bad disk from LVM2 with the less data loss on other PVs?
@AquariusPower, actually I prefer mdadm for the raid both because I prefer raid10 over raid1, and because it can reshape the array ( lvm can't convert a 2 disk mirror into a 3 disk raid5 for instance ).
Feb
22
comment How to remove bad disk from LVM2 with the less data loss on other PVs?
@AquariusPower, boot should not fail if one leg of the mirror is missing. Personally I prefer to use mdadm to handle the raid and lvm on top just to divide the array up into logical volumes. Booting directly from the raid array instead of having a stand alone /boot means the system can still boot up just fine if the primary boot disk dies.
Feb
12
answered High CPU utilization but low load average
Jan
22
comment Is it possible to change BIOS settings from Linux?
So if you are going to downvote a question ( especially after so much time ) you're really expected to leave a comment explaining why.
Jan
13
answered Why process running as Local System accessing a UNC share being seen as NT AUTHORITY\ANONYMOUS LOGON?
Jan
7
comment 3disk in raid 1 using half/half
@JimB, to what docs do you refer? md(4) clearly states that it is raid10 and the number of drives need not be a multiple of the number of replicas. Just because someone wrote on wikipedia that this is called raid 1e doesn't make it so. It is raid10 because it combines striping and mirroring, plain and simple, but whatever you want to call it ( and semantic arguments are largely pointless ) it is what the OP is looking for and claiming it isn't "standard" or "enterprise grade" is simply FUD.
Jan
7
comment 3disk in raid 1 using half/half
To read what? Your inability to provide a rational argument does not change the facts. The fact is that I'm looking at a working mdadm 3 way raid1 right now so you are incorrect.
Jan
7
comment Impact of Over Provisioning to a half used disk
@mestia, you mean like Bert's answer pointed out and I commented there that those tests are misleading?
Jan
7
comment Unidentifiable processes under Redhat Linux
ls -l /proc/7158/exe
Jan
7
comment 3disk in raid 1 using half/half
@JimB, mdadm raid10 is used by plenty of enterprises quite happily -- there is no reason at all to avoid it. Calling it "1E" is something silly that like one vendor somewhere once did. It's also kind of silly to say he did not provide raid10 when it is right there in the command.
Jan
7
comment 3disk in raid 1 using half/half
No, it does not; mdadm can do a 3 disk raid1 just fine.
Jan
7
comment dd on entire disk, but do not want empty portion
@bahamat, the question isn't asking specifically for sprase; just how to make the image take up less space.
Jan
7
comment dd on entire disk, but do not want empty portion
partimage and clonezilla are actually smart enough to skip reading the free space, rather than relying on you to write zeros to it, and then have dd or gzip drop or compress the zeros after reading them in.
Jan
7
comment dd on entire disk, but do not want empty portion
@bahamat, no, gzip is better since it will compress the data.
Jan
4
comment FTP errors due to extra slash in home path
So fix your broken script? A double slash in a posix file path is perfectly valid and treated exactly the same as a single slash.
Jan
1
comment Recovering a RAID5 with 2 disks out of the array
@user1717735, indeed, you may be able to still recover most of your data by cloning sdd using dd_rescue, but let this be a lesson to you that raid is no substitute for backups! You also need to monitor the health of the disks so you don't notice something is wrong until it is too late.