Tuesday, September 18, 2018

The Elephant Whisperer


The Elephant Whisperer

by
Lawrence Anthony,
Graham Spence


When South African conservationist Lawrence Anthony was asked to accept a herd of 'rogue' elephants on his Thula Thula game reserve in South Africa, his commonsense told him to refuse. But he was the herd's last chance of survival - notorious escape artists, they would all be killed if Lawrence wouldn't take them. He agreed, but before arrangements for the move could be completed the animals broke out again and the matriarch and her baby were shot. The remaining elephants were traumatized, dangerous, and very angry. As soon as they arrived at Thula Thula they started planning their escape...As Lawrence battled to create a bond with the elephants and save them from execution, he came to realize that they had a lot to teach him about life, loyalty and freedom. Set against the background of life on the reserve, with unforgettable characters and exotic wildlife, this is a delightful book that will appeal to animal lovers everywhere.
This to highlight emotional and political speeches of how an animal be treated in daily papers.
My advice as a doctor who had cared for traumatized and sexually abused children (in UK) is as follows.
1. Each elephant case be decided on merits and demerits.
2. Case by case approach is what I recommend.
3. Age
4. Sex
5. Care taker (abusing drunken mahout or devout mahout with loving care and experience).
6. Do not leave it to politicians
7. Do not leave it to civil servants.
8. Take into consideration cost of health care at old age
9. Take Pinnawela as a rehabilitation center
10. Release them in groups that make bondage when observed at Pinnawala.
11. Think about the mahout loss of a loved one
It is easy raise the political temperature and political mileage writing to newspapers.
Read the book cover to cover “The Elephant Whisperer” by
Lawrence Anthony.
By Asoka an elephant lover.

File systems for solid state drives (SSDs)

I have had few glitches with my SSD.
I cannot install multiple Linux Distributions due to its booting capability with GRUB.
I solved the problem by having both SSD and HDD in the system.
I have Debian installed and it goes into frozen state for unknown reason (wrong touch of a key in of the wireless typewriter). 
I solved it by going back to USB keyboard or restarting the computer.
I have a swap space in the SSD.
I do not use my computer 24/7 schedule now but download lot of torrent movies.
I watch them once and transfer the file to a spare NTS partition.
I have a SSD (240 GiB) and have not tried it to boot MultiSystem.
I think I will use it, for data storage, instead of running a Linux distribution on the fly. 
I think trying new stuff (SSD) for game is not my way of having a stable and reliable system running on HDD.
I have another way out.
I run Linux either on a USB stick (Tails, Elive) or Peppermint Live.
Debian is my favourite.
Knoppix and Puppy are my play mates.

Reproduction
File systems for solid state drives (SSDs)
Seeking-a-solid-file-system asks: I'm considering replacing my laptop's HDD for a SSD. However, I'd like to know the current state of development of Btrfs, XFS, ext4 and even ZFS for Linux. In short, is it still better (for a home/office user) to keep using ext4 or are other file systems are already mature enough to give them a try? I'd like to keep my data safe, but I'd also like to get the better performance and longevity for a SSD disk.

In addition, I've read somewhere that while using a SSD I should not have a swap partition. Is this true?

DistroWatch answers: 

Each of the file systems listed (Btrfs, ext4, XFS and ZFS) are mature and should be stable on any modern Linux distribution, at least running in a laptop. Btrfs has (reportedly) some lingering issues in RAID environments, but that is not going to affect most people. That being said, I typically recommend people stick with their distribution's default file system unless you know you have a specific case where another file system should be used.

For example, if you feel you really want to use file system snapshots, then go ahead and set up a Btrfs volume. Or if you need to transfer file system snapshots between multiple operating systems then ZFS makes a lot of sense. But if you do not have a particular use case in mind, then I suggest sticking with whatever file system your distribution recommends. (Usually this is ext4 on most Linux distributions, Btrfs on openSUSE and XFS on the Red Hat family of distributions.) None of these file systems is particular suited for (or a poor match with) SSDs.

Moving on to the swap space question, I think it is worth looking at where the advice against using swap on SSDs came from. When SSDs first hit the market one of the big drawbacks was that storage areas of an SSD could wear out after being written to a certain number of times. This meant that the operating system would need to work around burned out areas of the storage device. For most files this was not a big problem, but if a file system kept using the same specific area of the SSD over and over, that section of the SSD could be worn out. This was considered a problem for file systems that used a journal, for example, because the journal is written to the same place on disk each time.

This gave rise to the idea that SSDs should not be used with journaled file systems, swap space or other region-specific tasks. However, over the years SSDs became more resilient and could be written to for years before burning out. Burning out an SSD has not been a serious concern for at least a decade. Even with enterprise-level workloads, SSDs will last for years. In short, don't worry about how you use the SSD, its endurance should be about the same as a spinning hard drive's.

Specifically on the topic of swap space, the advice you read was backward, in my opinion. Since reading from random locations on an SSD is faster than from a spinning drive, SSDs are ideally geared toward being used for a swap partition.